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As filed with the Securities and Exchange Commission on December 18, 2009

Registration No. 333-158211

U.S. SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

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FORM N-2
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933

o PRE-EFFECTIVE AMENDMENT NO.   
ý POST-EFFECTIVE AMENDMENT NO. 1

ARES CAPITAL CORPORATION
(Exact Name of Registrant as Specified in Charter)

280 Park Avenue, 22^nd Floor
Building East
New York, New York 10017
(Address of Principal Executive Offices)

Registrant's Telephone Number, including Area Code: (212) 750-7300

Michael D. Weiner
c/o Ares Management LLC
2000 Avenue of the Stars, 12^th Floor
Los Angeles, CA 90067
(310) 201-4200
(Name and Address of Agent for Service)

Copies of information to:

Michael A. Woronoff
Monica J. Shilling
Proskauer Rose LLP
2049 Century Park East, 32^nd Floor
Los Angeles, CA 90067-3206
(310) 557-2900

Approximate Date of Proposed Public Offering: From time to time after the effective date of this Registration Statement.

If any securities being registered on this form will be offered on a delayed or continuous basis in reliance on Rule 415 under the Securities Act of 1933, other than securities offered in connection with a dividend reinvestment plan, check the following box. ý

It is proposed that this filing will become effective (check appropriate box):

ý

when declared effective pursuant to section 8(c).

If appropriate, check the following box:

o

This post-effective amendment designates a new effective date for a previously filed post-effective amendment registration statement.

o

This form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act and the Securities Act registration statement number of the earlier effective registration statement for the same offering is                   .

CALCULATION OF REGISTRATION FEE UNDER THE SECURITIES ACT OF 1933

                  THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF THE SECURITIES ACT OF 1933, AS AMENDED, OR UNTIL THIS REGISTRATION STATEMENT SHALL BECOME EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SECTION 8(a), MAY DETERMINE.

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The information in this prospectus is not complete and may be changed. We may not sell these securities until the registration statement filed with the Securities and Exchange Commission is effective. This prospectus is not an offer to sell these securities and it is not soliciting an offer to buy these securities in any state where the offer or sale is not permitted.

Subject to Completion, dated December 18, 2009

PROSPECTUS

$750,000,000

Common Stock
Preferred Stock
Debt Securities
Subscription Rights
Warrants

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              Ares Capital Corporation is a specialty finance company that is a closed-end, non-diversified management investment company incorporated in Maryland. We have elected to be regulated as a business development company under the Investment Company Act of 1940. Our investment objective is to generate both current income and capital appreciation through debt and equity investments. We invest primarily in first and second lien senior loans and mezzanine debt, which in some cases includes an equity component. To a lesser extent, we also make equity investments.

              We are externally managed by Ares Capital Management LLC, an affiliate of Ares Management LLC, a global alternative asset manager and a Securities and Exchange Commission ("SEC") registered investment adviser with approximately $30 billion of total committed capital as of September 30, 2009. Ares Operations LLC, an affiliate of Ares Management LLC, provides the administrative services necessary for us to operate.

              Our common stock is traded on The NASDAQ Global Select Market under the symbol "ARCC." On December 17, 2009, the last reported sales price of our common stock on The NASDAQ Global Select Market was $11.67 per share. The net asset value per share of our common stock at September 30, 2009 (the last date prior to the date of this prospectus on which we determined net asset value) was $11.16.

              Investing in our securities involves risks that are described in the "Risk Factors" section beginning on page 25 of this prospectus, including the risk of leverage.

              We may offer, from time to time, in one or more offerings or series, up to $750,000,000 of our common stock, preferred stock, debt securities, subscription rights to purchase shares of our common stock or warrants representing rights to purchase shares of our common stock, preferred stock or debt securities, separately or as units comprised of any combination of the foregoing, which we refer to, collectively, as the "securities." The preferred stock, debt securities, subscription rights and warrants offered hereby may be convertible or exchangeable into shares of our common stock. The securities may be offered at prices and on terms to be described in one or more supplements to this prospectus. In the event we offer common stock, the offering price per share of our common stock less any underwriting commissions or discounts will generally not be less than the net asset value per share of our common stock at the time we make the offering. However, we may issue shares of our common stock pursuant to this prospectus at a price per share that is less than our net asset value per share (a) in connection with a rights offering to our existing stockholders, (b) with the prior approval of the majority of our common stockholders or (c) under such circumstances as the SEC may permit. This prospectus and the accompanying prospectus supplement concisely provide important information about us that you should know before investing in our securities. Please read this prospectus and the accompanying prospectus supplement before you invest and keep it for future reference. We file annual, quarterly and current reports, proxy statements and other information with the SEC. This information is available free of charge by calling us collect at (310) 201-4200 or on our website at www.arescapitalcorp.com. The SEC also maintains a website at www.sec.gov that contains such information.

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              Neither the SEC nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

              This prospectus may not be used to consummate sales of securities unless accompanied by a prospectus supplement.

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The date of this prospectus is                        , 2009.

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              You should rely only on the information contained in this prospectus and the accompanying prospectus supplement. We have not authorized any other person to provide you with different information. If anyone provides you with different or inconsistent information, you should not rely on it. We are not making an offer to sell these securities in any jurisdiction where the offer or sale is not permitted. You should assume that the information appearing in this prospectus and the accompanying prospectus supplement is accurate only as of the date on the front cover of this prospectus and the accompanying prospectus supplement, as applicable. Our business, financial condition, results of operations and prospects may have changed since that date.

TABLE OF CONTENTS

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ABOUT THIS PROSPECTUS

              This prospectus is part of a registration statement that we have filed with the SEC, using the "shelf" registration process. Under the shelf registration process, we may offer, from time to time, up to $750,000,000 of our common stock, preferred stock, debt securities, subscription rights to purchase shares of our common stock or warrants representing rights to purchase shares of our common stock, preferred stock or debt securities, separately or as units comprised of any combination of the foregoing, on terms to be determined at the time of the offering. The securities may be offered at prices and on terms described in one or more supplements to this prospectus. This prospectus provides you with a general description of the securities that we may offer. Each time we use this prospectus to offer securities, we will provide a prospectus supplement that will contain specific information about the terms of that offering. The prospectus supplement may also add, update or change information contained in this prospectus. As of the date of this registration statement, we had offered $115,069,149 of the $750,000,000 of securities covered by this registration statement. Please carefully read this prospectus and the prospectus supplement together with any exhibits and the additional information described under the headings "Available Information" and "Risk Factors" before you make an investment decision.

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PROSPECTUS SUMMARY

              This summary highlights some of the information contained elsewhere in this prospectus. It is not complete and may not contain all of the information that you may want to consider. You should read carefully the more detailed information set forth under "Risk Factors" and the other information included in this prospectus. Except where the context suggests otherwise, the terms "we," "us," "our," "the Company" and "Ares Capital" refer to Ares Capital Corporation and its consolidated subsidiaries; "Ares Capital Management" or "investment adviser" refers to Ares Capital Management LLC; "Ares Operations" refers to Ares Operations LLC; and "Ares" refers to Ares Partners Management Company LLC and its affiliated companies, including Ares Management LLC, which we also refer to as "Ares Management."

              Other than as specifically set forth herein, information presented with respect to Ares Capital does not reflect the consummation of the Allied Acquisition (as defined below), and any investment decision you make should be made independent of the consummation of the Allied Acquisition. We cannot assure you that the Allied Acquisition will be consummated as scheduled, or at all. See "Pending Allied Acquisition" for a description of the terms of the Allied Acquisition, "Risk Factors—Risks Relating to Our Business—We may fail to consummate the Allied Acquisition" for a description of the risks associated with a failure to consummate the Allied Acquisition and "Risk Factors—Risks Relating to a Consummation of the Allied Acquisition" for a description of the risks that the combined company may face if the Allied Acquisition is consummated.

THE COMPANY

              Ares Capital, a Maryland corporation, is a specialty finance company that is a closed-end, non-diversified management investment company. We have elected to be regulated as a business development company, or a "BDC," under the Investment Company Act of 1940, or the "Investment Company Act." We were founded on April 16, 2004, were initially funded on June 23, 2004 and completed our initial public offering on October 8, 2004. Ares Capital's investment objective is to generate both current income and capital appreciation through debt and equity investments. We invest primarily in U.S. middle-market companies, where we believe the supply of primary capital is limited and the investment opportunities are most attractive. However, we may from time to time invest in larger companies. In this prospectus, we generally use the term "middle market" to refer to companies with annual EBITDA (earnings before interest, taxes, depreciation and amortization) of between $10 million and $250 million. As discussed in "Recent Developments" below, on October 26, 2009, we entered into a definitive agreement (the "Merger Agreement") under which we have agreed, subject to the satisfaction of certain closing conditions, to acquire Allied Capital Corporation ("Allied Capital") in an all stock transaction, which we refer to as the "Allied Acquisition." The Allied Acquisition will be completed in two parts: first, our wholly owned subsidiary, which we refer to as the "merger subsidiary," will merge with and into Allied Capital and second, Allied Capital will merge with and into Ares Capital, which we refer to as the "subsequent combination." We cannot assure you that the Allied Acquisition will be consummated as scheduled, or at all. See "Pending Allied Acquisition" for a description of the terms of the Allied Acquisition, "Risk Factors—Risks Relating to Our Business—We may fail to consummate the Allied Acquisition" for a description of the risks associated with a failure to consummate the Allied Acquisition and "Risk Factors—Risks Relating to a Consummation of the Allied Acquisition" for a description of the risks that the combined company may face if the Allied Acquisition is consummated.

              We invest primarily in first and second lien senior loans and mezzanine debt, which in some cases includes an equity component like warrants. First and second lien senior loans generally are senior debt instruments that rank ahead of subordinated debt of a given portfolio company. These loans also have the benefit of security interests on the assets of the portfolio company, which may rank ahead of or be junior to other security interests. Mezzanine debt is subordinated to senior loans and is generally unsecured. Our debt investments have ranged between $10 million and $100 million each,

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although the investment sizes may be more or less than the targeted range. Our investment sizes are expected to grow with our capital availability and, if completed, upon consummation of the Allied Acquisition. To a lesser extent, we also make equity investments. Each of our equity investments have generally been less than $20 million, but may grow with our capital availability and are usually made in conjunction with loans we make to these portfolio companies.

              The proportion of these investments will change over time given our views on, among other things, the economic and credit environment we are operating in. In connection with our investing activities, we may make commitments with respect to indebtedness or securities of a potential portfolio company substantially in excess of our final investment. In such situations, while we may initially agree to fund up to a certain dollar amount of an investment, we may syndicate a portion of such amount to third parties, such that we make a smaller investment than what was reflected in our original commitment.

              The first and second lien senior loans generally have stated terms of three to 10 years and the mezzanine debt investments generally have stated terms of up to 10 years, but the expected average life of such first and second lien loans and mezzanine debt is generally between three and seven years. However, we may invest in securities with any maturity or duration. The debt that we invest in typically is not initially rated by any rating agency, but we believe that if such investments were rated, they would be below investment grade (rated lower than "Baa3" by Moody's Investors Service or lower than "BBB-" by Standard & Poor's). We may invest without limit in debt of any rating, as well as debt that has not been rated by any nationally recognized statistical rating organization.

              We believe that our investment adviser, Ares Capital Management, is able to leverage Ares' current investment platform, resources and existing relationships with financial sponsors, financial institutions, hedge funds and other investment firms to provide us with attractive investments. In addition to deal flow, the Ares investment platform assists our investment adviser in analyzing, structuring and monitoring investments. Ares has been in existence for more than 11 years and its senior principals have an average of over 20 years experience investing in senior loans, high yield bonds, mezzanine debt and private equity securities. The Company has access to the Ares staff of approximately 110 investment professionals and to the approximately 140 administrative professionals employed by Ares who provide assistance in accounting, legal, compliance, operations, technology and investor relations.

              While our primary focus is to generate current income and capital appreciation through investments in first and second lien senior loans and mezzanine debt and, to a lesser extent, equity securities of eligible portfolio companies, we also may invest up to 30% of our portfolio in opportunistic investments of non-eligible portfolio companies. Specifically, as part of this 30% basket, we may invest in debt of middle-market companies located outside of the United States, in investment funds that are operating pursuant to certain exceptions to the Investment Company Act, in advisers to similar investment funds and in debt and equity of public companies that do not meet the definition of eligible portfolio companies because their market capitalization of publicly traded equity securities exceeds the levels provided for in the Investment Company Act. We expect that these public companies generally will have debt that may be non-investment grade. From time to time we may also invest in high yield bonds, which, depending on the issuer, may or may not be included in the 30% basket.

              In addition to making investments in the Ares Capital portfolio, our portfolio company, Ivy Hill Asset Management L.P. ("IHAM"), manages two unconsolidated senior debt funds, Ivy Hill Middle Market Credit Fund, Ltd. ("Ivy Hill I") and Ivy Hill Middle Market Credit Fund II, Ltd. ("Ivy Hill II" and, together with Ivy Hill I, the "Ivy Hill Funds") and serves as the sub-adviser/sub-manager for four others: CoLTS 2005-1 Ltd., CoLTS 2005-2 Ltd. and CoLTS 2007-1 Ltd., or collectively, the "CoLTS Funds," and FirstLight Financial Corporation, or "FirstLight." As of September 30, 2009, IHAM had total committed capital under management of over $2.0 billion. We and GE Commercial Finance

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Investment Advisory Services LLC also co-manage an unconsolidated senior debt fund: the Senior Secured Loan Fund LLC (formerly known as the Unitranche Fund LLC), or the "SL Fund." We acquired our interests in the SL Fund from Allied Capital on October 30, 2009.

About Ares

              Founded in 1997, Ares is a global alternative asset manager and SEC registered investment adviser with approximately $30 billion of total committed capital and over 250 employees as of September 30, 2009.

              Ares specializes in originating and managing assets in both the leveraged finance and private equity markets. Ares' leveraged finance activities include the acquisition and management of senior loans, high yield bonds, mezzanine debt and special situation investments. Ares' private equity activities focus on providing flexible, junior capital to middle-market companies. Ares has the ability to invest across a capital structure, from senior floating rate debt to common equity. This flexibility, combined with Ares' "buy and hold" philosophy, enables Ares to structure an investment to meet the specific needs of a company rather than the less flexible demands of the public markets.

              Ares is comprised of the following groups:

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Private Debt Group. The Ares Private Debt Group manages the assets of Ares Capital and Ares' private debt middle market financing activities in Europe, Ares Capital Europe ("ACE"). The Private Debt Group focuses primarily on non-syndicated first and second lien senior loans and mezzanine debt, which in some cases may include an equity component. The Private Debt Group also makes equity investments in private middle-market companies, usually in conjunction with loans.



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Capital Markets Group. The Ares Capital Markets Group manages a variety of funds and investment vehicles that managed approximately $18.3 billion of committed capital as of September 30, 2009, focusing primarily on syndicated senior secured loans, high yield bonds, distressed debt, other liquid fixed income investments and other publicly traded debt securities.



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Private Equity Group. The Ares Private Equity Group manages Ares Corporate Opportunities Fund L.P., Ares Corporate Opportunities Fund II, L.P. and Ares Corporate Opportunities Fund III, L.P. (collectively referred to as "ACOF"), which together managed approximately $6.0 billion of committed capital as of September 30, 2009. ACOF generally makes private equity investments in companies substantially larger than the private equity investments anticipated to be made by the Company. In particular, the Private Equity Group generally focuses on control-oriented equity investments in under-capitalized companies or companies with capital structure issues.

              Ares' senior principals have been working together as a group for many years and have an average of over 20 years of experience in leveraged finance, private equity, distressed debt, investment banking and capital markets. They are backed by a large team of highly disciplined professionals. Ares' rigorous investment approach is based upon an intensive, independent financial analysis, with a focus on preservation of capital, diversification and active portfolio management. These fundamentals underlie Ares' investment strategy and have resulted in large pension funds, banks, insurance companies, endowments and high net worth individuals investing in Ares' funds.

Ares Capital Management

              Ares Capital Management, our investment adviser, is served by a dedicated origination and transaction development team of approximately 31 investment professionals led by the partners of Ares Capital Management, Michael Arougheti, Eric Beckman, Kipp deVeer, Mitchell Goldstein and Michael

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Smith. Ares Capital Management leverages off of Ares' entire investment platform and benefits from the significant capital markets, trading and research expertise of all of Ares' investment professionals. Ares funds currently hold over 700 investments in over 30 different industries. Ares Capital Management's investment committee has nine members, including Senior Partners of Ares.

MARKET OPPORTUNITY

              We believe there are opportunities for us to invest in middle-market companies for the following reasons:

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We believe that as of the date of this prospectus, the recent dislocation in the credit markets has resulted in reduced competition, a widening of interest spreads, increased fees and generally more conservative capital structures and deal terms. Although secondary loan prices have rebounded from historic lows, attractive opportunities to purchase debt in the secondary market continue to exist in certain situations.



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We believe that many senior lenders have, in recent years, de-emphasized their service and product offerings to middle-market businesses in favor of lending to large corporate clients and managing capital markets transactions. In addition, commercial and investment banks are severely limited in their ability to underwrite new financings as they seek to replenish their capital bases and reduce leverage, resulting in opportunities for alternative funding sources.



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We believe there is increased demand among private middle-market companies for primary capital. Many middle market firms have faced increased difficulty raising debt in the capital markets, as commercial and investment banks are capital-constrained and largely unable to underwrite and syndicate bank loans and high yield securities, particularly for middle market issuers.



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We believe there is a large pool of uninvested private equity capital for middle-market companies. We expect private equity firms will seek to leverage their investments by combining equity capital with senior secured loans and mezzanine debt from other sources.



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We believe that as of the date of this prospectus, the recent economic downturn has resulted (and will continue to result) in defaults and covenant breaches by middle-market companies, which will require new junior capital to shore up liquidity or provide new capital through restructuring.



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A high volume of senior secured and high yield debt was originated in the calendar years 2004 through 2007 and will come due in the near term and, accordingly, we believe that new financing opportunities will increase as many leveraged companies seek to refinance in the near term.

COMPETITIVE ADVANTAGES

              We believe that we have the following competitive advantages over other capital providers to middle-market companies:

Existing Investment Platform

              As of September 30, 2009, Ares managed approximately $30 billion of committed capital in the related asset classes of syndicated loans, high yield bonds, mezzanine debt and private equity. We believe Ares' current investment platform provides a competitive advantage in terms of access to origination and marketing activities and diligence for Ares Capital. Specifically, the Ares platform provides the Company an advantage through its deal flow generation and investment evaluation

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process. Ares Capital's asset management platform also provides additional market information, company knowledge and industry insight that benefits the investment and due diligence process. Ares' professionals maintain extensive financial sponsor and intermediary relationships, which provide valuable insight and access to transactions and information.

Seasoned Management Team

              Ares' senior professionals have an average of over 20 years of experience in leveraged finance, including substantial experience in investing in leveraged loans, high yield bonds, mezzanine debt, distressed debt and private equity securities. Ares Capital Management's investment professionals and members of its investment committee also have significant experience investing across market cycles. As a result of Ares' extensive investment experience and the history of its seasoned management team, Ares has developed a strong reputation across U.S. and European capital markets. We believe that Ares' long history in the leveraged loan market and the extensive experience of the principals investing across market cycles provides Ares Capital Management with a competitive advantage in identifying, investing in, and managing a portfolio of investments in middle-market companies.

Experience and Focus on Middle-Market Companies

              Ares has historically focused on investments in middle-market companies and we benefit from this experience. In sourcing and analyzing deals, our investment adviser uses Ares' extensive network of relationships with intermediaries focused on middle-market companies to attract well-positioned prospective portfolio company investments. Our investment adviser works closely with the Ares investment professionals, who oversee a portfolio of investments in over 700 companies, and provide access to an extensive network of relationships and special insights into industry trends and the state of the capital markets.

Disciplined Investment Philosophy

              In making its investment decisions, our investment adviser has adopted Ares' long-standing, consistent credit-based investment approach that was developed over 18 years ago by its founders. Specifically, Ares Capital Management's investment philosophy, portfolio construction and portfolio management involve an assessment of the overall macroeconomic environment, financial markets and company-specific research and analysis. Its investment approach emphasizes capital preservation, low volatility and minimization of downside risk.

Extensive Industry Focus

              We concentrate our investing activities in industries with a history of predictable and dependable cash flows and in which the Ares investment professionals have had extensive investment experience. Since its inception in 1997, Ares investment professionals have invested in over 30 different industries. Ares investment professionals have developed long-term relationships with management teams and management consultants in these industries, and have accumulated substantial information concerning these industries and identified potential trends within these industries. The experience of Ares' investment professionals investing across these industries throughout various stages of the economic cycle provides our investment adviser with access to market insights and investment opportunities.

Flexible Transaction Structuring

              We are flexible in structuring investments, including the types of securities in which we invest and the terms associated with such investments. The principals of Ares have extensive experience in a wide variety of securities for leveraged companies with a diverse set of terms and conditions. We

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believe this approach and experience enables our investment adviser to identify attractive investment opportunities throughout the economic cycle and across a company's capital structure so we can make investments consistent with our stated investment objective and preserve principal while seeking appropriate risk adjusted returns. In addition, we have the ability to provide "one stop" financing with the ability to invest capital across the balance sheet and hold larger investments than many of our competitors. The ability to underwrite, syndicate and hold larger investments (a) increases flexibility, (b) may increase net fee income and earnings through syndication, (c) broadens market relationships and deal flow and (d) allows us to optimize our portfolio composition. We believe that the ability to provide capital at every level provides a strong value proposition to middle market borrowers and our senior debt capabilities provide superior deal origination and relative value analysis capabilities compared to traditional "mezzanine only" lenders.

Broad Origination Strategy

              Our investment adviser focuses on self-originating most of our investments, by identifying a broad array of investment opportunities across multiple channels. It also leverages off of the extensive relationships of the broader Ares platform, including the relationships with portfolio companies held by funds managed by IHAM, to identify investment opportunities. We believe that this allows for asset selectivity and that there is a significant relationship between proprietary deal origination and credit performance. Our focus on generating proprietary deal flow and lead investing also gives us greater control over capital structure, deal terms, pricing and documentation and results in active portfolio management of investments. Moreover, by leading the investment process, our investment adviser is able to secure controlling positions in credit tranches providing additional control in investment outcomes. Our investment adviser also has originated substantial proprietary deal flow from middle market intermediaries, which often allows us to act as the sole or principal source of institutional junior capital to the borrower.

OPERATING AND REGULATORY STRUCTURE

              Our investment activities are managed by Ares Capital Management and supervised by our board of directors, a majority of whom are independent of Ares and its affiliates. Ares Capital Management is an investment adviser that is registered under the Investment Advisers Act of 1940, or the "Advisers Act." Under our amended and restated investment advisory and management agreement, referred to herein as our "investment advisory and management agreement," we have agreed to pay Ares Capital Management an annual base management fee based on our total assets, as defined under the Investment Company Act (other than cash and cash equivalents but including assets purchased with borrowed funds), and an incentive fee based on our performance. See "Management—Investment Advisory and Management Agreement."

              As a BDC, we are required to comply with certain regulatory requirements. While we are permitted to finance investments using debt, our ability to use debt is limited in certain significant respects. See "Regulation." We have elected to be treated for U.S. federal income tax purposes as a regulated investment company, or a "RIC," under Subchapter M of the Internal Revenue Code of 1986, or the "Code." See "Certain Material U.S. Federal Income Tax Considerations."

MARKET CONDITIONS

              Due to volatility in global markets, the availability of capital and access to capital markets has been limited over the last two years. We responded to recent constraints on raising new capital by pursuing other avenues of liquidity and growth, such as adjusting the pace of our investments, becoming more selective in evaluating investment opportunities, pursuing asset sales, developing our third-party asset management capabilities and/or recycling lower yielding investments. We also intend to continue pursuing opportunities to manage third-party funds. As the global liquidity situation and

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market conditions evolve, we will continue to monitor and adjust our approach to funding accordingly. However, given the unprecedented nature of the volatility in the global markets, there can be no assurances that these activities will be successful. While levels of market disruption and volatility appear to be improving, there can be no assurance that they will not worsen. If they do, we could face materially higher financing costs. Consequently, our operating strategy could be materially and adversely affected.

              Consistent with the depressed market conditions of the general economy, the stocks of BDCs as an industry have traded at near historic lows for over twelve months as a result of concerns over liquidity, credit quality, leverage restrictions and distribution requirements. As a result of the deterioration of the market, several of our peers are no longer active in the market and are winding down their investments, have defaulted on their indebtedness, have decreased their distributions to stockholders or have announced share repurchase programs. While market conditions have improved, we cannot assure you that the market pressures we face will not have a material adverse effect on our business, financial condition and results of operations.

              See "Risk Factors—Risks Relating to Our Business."

LIQUIDITY

              We are party to (a) the JPM Revolving Credit Facility (as defined herein) that provides for up to $525.0 million of borrowings and up to $765.0 million if we exercise the "accordion" feature, which expires on December 28, 2010 and (b) the CP Funding II Facility (as defined herein) that provides for up to $200.0 million of borrowings, which expires on July 21, 2012 (subject to two one-year extension options exercisable upon mutual consent). In addition, our wholly owned subsidiary Ares Capital CP (as defined herein) is party to the CP Funding Facility (as defined herein) that, as amended, provides for up to $225.0 million of borrowings, and which expires on May 7, 2012. We refer to the JPM Revolving Credit Facility, the CP Funding Facility and the CP Funding II Facility collectively as the "Facilities." As of September 30, 2009, we had $453.9 million available for borrowing under our Facilities. We also have outstanding $273.8 million of CLO Notes (as defined herein) that mature on December 20, 2019. See "Management's Discussion and Analysis of Financial Condition and Results of Operations—Financial Condition, Liquidity and Capital Resources."

RISK FACTORS

              Investing in Ares Capital involves risks. The following is a summary of certain risks that you should carefully consider before investing in our securities. In addition, see "Risk Factors" beginning on page 25 for a more detailed discussion of the factors you should carefully consider before deciding to invest in our securities.

Risks Relating to Our Business

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Capital markets have recently been in a period of disruption and instability. These market conditions have materially and adversely affected debt and equity capital markets in the United States, which has had, and may in the future have, a negative impact on our business and operations.



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A failure on our part to maintain our status as a BDC would significantly reduce our operating flexibility.



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We are dependent upon Ares Capital Management's key personnel for our future success and upon their access to Ares' investment professionals.



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Our financial condition and results of operations depend on our ability to manage future growth effectively.

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Our ability to grow depends on our ability to raise capital.



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Regulations governing our operation as a BDC affect our ability to, and the way in which we, raise additional capital.



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We borrow money, which magnifies the potential for gain or loss on amounts invested and may increase the risk of investing with us.



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In addition to regulatory requirements that restrict our ability to raise capital, the Facilities and the CLO Notes contain various covenants which, if not complied with, could accelerate repayment under the Facilities and the CLO Notes, thereby materially and adversely affecting our liquidity, financial condition and results of operations.



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We operate in a highly competitive market for investment opportunities.



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We may be subject to certain corporate-level taxes regardless of whether we continue to qualify as a RIC.



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We may have difficulty paying our required distributions under applicable tax rules if we recognize income before or without receiving cash representing such income.



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We may in the future determine to fund a portion of our investments with preferred stock, which would magnify the potential for gain or loss and the risks of investing in us in the same way as our borrowings.



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We are exposed to risks associated with changes in interest rates.



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Many of our portfolio investments are not publicly traded and, as a result, there is uncertainty as to the value of our portfolio investments.



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The lack of liquidity in our investments may adversely affect our business.



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We may experience fluctuations in our quarterly results.



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There are significant potential conflicts of interest that could impact our investment returns.



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Our investment adviser's liability is limited under the investment advisory and management agreement, and we are required to indemnify our investment adviser against certain liabilities, which may lead our investment adviser to act in a riskier manner on our behalf than it would when acting for its own account.



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We may be obligated to pay our investment adviser incentive compensation even if we incur a loss.



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Changes in laws or regulations governing our operations, or changes in the interpretation thereof, and any failure by us to comply with laws or regulations governing our operations may adversely affect our business.



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We may not replicate Ares' historical success and our ability to enter into transactions with Ares and our other affiliates is restricted.



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We may fail to consummate the Allied Acquisition.

Risks Relating to Our Investments

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Price declines and illiquidity in the corporate debt markets have adversely affected, and may in the future adversely affect, the fair value of our portfolio investments, reducing our net asset value through increased net unrealized depreciation.

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•

Economic recessions or downturns could impair our portfolio companies and harm our operating results.



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Investments in privately held middle-market companies involve significant risks.



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Our debt investments may be risky, and we could lose all or part of our investment.



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Investments in equity securities involve a substantial degree of risk.



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There may be circumstances where our debt investments could be subordinated to claims of other creditors or we could be subject to lender liability claims.



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Our portfolio companies may incur debt or issue equity securities that rank equally with, or senior to, our investments in such companies.



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When we are a debt or minority equity investor in a portfolio company, we may not be in a position to exert influence on the entity, and management of the company may make decisions that could decrease the value of our portfolio holdings.



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Our portfolio companies may be highly leveraged.



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Our investment adviser's incentive fee may induce Ares Capital Management to make certain investments, including speculative investments.



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Our investments in foreign debt may involve significant risks in addition to the risks inherent in U.S. investments. We may expose ourselves to risks if we engage in hedging transactions.



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We may initially invest a portion of the net proceeds of offerings pursuant to this prospectus primarily in high-quality short-term investments, which will generate lower rates of return than those expected from the interest generated on first and second lien loans and mezzanine debt.

Risks Relating to a Consummation of the Allied Acquisition

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Consummation of the Allied Acquisition will cause immediate dilution to our stockholders' voting interests in us and may cause immediate dilution to the net asset value per share of our common stock.



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We may be unable to realize the benefits anticipated by the Allied Acquisition, including estimated cost savings and synergies, or it may take longer than anticipated to achieve such benefits.



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Our inability to obtain rating agency confirmation and the third party consents of financing providers to us and Allied Capital necessary to complete the transaction could delay or prevent the completion of the Allied Acquisition.



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The Allied Acquisition or subsequent combination may trigger certain "change of control" provisions and other restrictions in certain of our and Allied Capital's contracts and the failure to obtain any required consents or waivers could adversely impact the combined company.



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Several lawsuits have been filed against Allied Capital, members of Allied Capital's board of directors, us and the merger subsidiary challenging the Allied Acquisition. An adverse ruling in any such lawsuit may prevent the Allied Acquisition from becoming effective within the expected timeframe, or at all. If the Allied Acquisition is consummated, these lawsuits and other legal proceedings could have a material impact on the results of operations, cash flows or financial condition of the combined company.

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•

If the Allied Acquisition does not close, we won't benefit from the expenses incurred in its pursuit.



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Termination of the Merger Agreement could negatively impact us.



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Under certain circumstances, we and Allied Capital are obligated to pay each other a termination fee upon termination of the Merger Agreement.



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The market price of our common stock after the Allied Acquisition may be affected by factors different from those affecting our common stock currently.

Risks Relating to Offerings Pursuant to this Prospectus

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Our shares of common stock have recently traded at a discount from net asset value and may do so again in the future, which could limit our ability to raise additional equity capital.



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There is a risk that investors in our equity securities may not receive dividends or that our dividends may not grow over time and that investors in our debt securities may not receive all of the interest income to which they are entitled.



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Provisions of the Maryland General Corporation Law and of our charter and bylaws could deter takeover attempts and have an adverse impact on the price of our common stock.



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Investing in our securities may involve an above average degree of risk.



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The market price of our common stock may fluctuate significantly.



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The net asset value per share of our common stock may be diluted if we sell shares of our common stock in one or more offerings at prices below the then current net asset value per share of our common stock or securities to subscribe for or convertible into shares of our common stock.



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Your interest in us may be diluted if you do not fully exercise your subscription rights in any rights offering. In addition, if the subscription price is less than our net asset value per share, then you will experience an immediate dilution of the aggregate net asset value of your shares.



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Investors in offerings of our common stock will likely incur immediate dilution upon the closing of such offering.



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Our stockholders will experience dilution in their ownership percentage if they do not participate in our dividend reinvestment plan.



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You may receive shares of our common stock as dividends, which could result in adverse tax consequences to you.



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Sales of substantial amounts of our common stock in the public market may have an adverse effect on the market price of our common stock.



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The trading market or market value of our publicly issued debt securities may fluctuate.



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Terms relating to redemption may materially adversely affect your return on any debt securities that we may issue.



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Our credit ratings may not reflect all risks of an investment in our debt securities.

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RECENT DEVELOPMENTS

Allied Acquisition

              On October 26, 2009, we entered into a definitive agreement to acquire Allied Capital in an all stock transaction valued at $648 million, or approximately $3.47 per Allied Capital share as of October 23, 2009. The boards of directors of both companies have each unanimously approved the Allied Acquisition.

              Allied Capital is an internally managed BDC. Allied Capital invests in primarily private middle-market companies in a variety of industries through long-term debt and equity capital instruments.

              While there can be no assurances as to the exact timing, or that the Allied Acquisition will be completed at all, we are working to complete the Allied Acquisition in the first quarter of 2010. The consummation of the Allied Acquisition is subject to certain conditions, including, among others, Allied Capital stockholder approval, Ares Capital stockholder approval, required regulatory approvals (including expiration of the waiting period under the Hart-Scott-Rodino Act Antitrust Improvements Act of 1976, as amended, or the "HSR Act," the early termination of which was granted on December 1, 2009), receipt of certain Ares Capital and Allied Capital lender consents and other customary closing conditions.

              We cannot assure you that the Allied Acquisition will be consummated as scheduled, or at all. See "Pending Allied Acquisition" for a more detailed description of the terms of the Allied Acquisition, "Risk Factors—Risks Relating to Our Business—We may fail to consummate the Allied Acquisition" for a description of the risks associated with a failure to consummate the Allied Acquisition and "Risk Factors—Risks Relating to a Consummation of the Allied Acquisition" for a description of the risks that the combined company may face if the Allied Acquisition is consummated.

Unitranche Fund Acquisition

              In a separate transaction, on October 30, 2009, we completed our acquisition of Allied Capital's interests in the SL Fund for $165 million in cash. The SL Fund was formed in December 2007 to invest in "unitranche" loans of middle-market companies and has approximately $3.6 billion of committed capital, approximately $900 million in aggregate principal amount of which is currently funded. Of the $2.7 billion of unfunded committed capital, approximately $350 million would be funded by us.

Other Acquisitions

              We believe that the dislocation in the credit markets has created compelling risk adjusted returns in both the primary and secondary markets. Further, the current dislocation and illiquidity in the credit markets has also increased the likelihood of further consolidation in our industry. To that end, over the past 12-18 months we have evaluated (and expect to continue to evaluate in the future) a number of potential strategic acquisition opportunities, including acquisitions of:

•

asset portfolios;



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contracts to manage collateralized loan obligation, or CLO, vehicles and other investment vehicles;



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other private and public finance companies or asset managers; and



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selected secondary market assets.

              For example, in June 2009 our portfolio company IHAM completed the acquisition of contracts to sub-manage approximately $770 million of middle market loan assets in three CLO vehicles managed by affiliates of Wells Fargo & Company. IHAM also acquired certain equity interests in these

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three CLOs. In addition, on October 26, 2009, we entered into a definitive agreement to acquire Allied Capital in an all stock transaction valued at $648 million, or approximately $3.47 per Allied Capital share as of October 23, 2009. See "—Allied Acquisition."

              We have been and continue to be engaged in discussions with counterparties in respect of various potential strategic acquisition and investment transactions, including potential acquisitions of other finance companies. Some of these transactions could be material to our business and, if consummated, could be difficult to integrate, result in increased leverage or dilution and/or subject us to unexpected liabilities. However, none of these discussions has progressed to the point where the consummation of any such transaction could be deemed to be probable or reasonably certain as of the date of this prospectus. Consummation of any such transaction will be subject to completion of due diligence, finalization of key business and financial terms (including price) and negotiation of final definitive documentation as well as a number of other factors and conditions including, without limitation, the approval of our board of directors (after having determined that such transaction is in the best interest of our stockholders), any required third party consents and, in certain cases, the approval of our stockholders. We cannot predict how quickly the terms of any such transaction could be finalized, if at all. Accordingly, there can be no assurance that definitive documentation for any such transaction would be executed or even if executed, that any such transaction will be consummated. In connection with evaluating potential strategic acquisition and investment transactions, we have, and may in the future, incur significant expenses for the evaluation and due diligence investigation of these potential transactions.

OUR CORPORATE INFORMATION

              Our administrative offices are located at 2000 Avenue of the Stars, 12th Floor, Los Angeles, California 90067, telephone number (310) 201-4200, and our executive offices are located at 280 Park Avenue, 22nd Floor, Building East, New York, New York 10017, telephone number (212) 750-7300.

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OFFERINGS

              We may offer, from time to time, up to $750,000,000 of our common stock, preferred stock, debt securities, subscription rights to purchase shares of our common stock or warrants representing rights to purchase shares of our common stock, preferred stock or debt securities, or units comprised of any combination of the foregoing, on terms to be determined at the time of the offering. We will offer our securities at prices and on terms to be set forth in one or more supplements to this prospectus. The offering price per share of our common stock, less any underwriting commissions or discounts, generally will not be less than the net asset value per share of our common stock at the time of an offering. However, we may issue shares of our common stock pursuant to this prospectus at a price per share that is less than our net asset value per share (a) in connection with a rights offering to our existing stockholders, (b) with the prior approval of the majority of our common stockholders or (c) under such other circumstances as the SEC may permit. Any such issuance of shares of our common stock below net asset value may be dilutive to the net asset value of our common stock. See "Risk Factors—Risks Relating to Offerings Pursuant to this Prospectus." As of the date of this registration statement, we had offered $115,069,149 of the $750,000,000 of securities covered by this registration statement.

              We may offer our securities directly to one or more purchasers, including existing stockholders in a rights offering, through agents that we designate from time to time or to or through underwriters or dealers. The prospectus supplement relating to each offering will identify any agents or underwriters involved in the sale of our securities, and will set forth any applicable purchase price, fee, commission or discount arrangement between us and our agents or underwriters or among our underwriters or the basis upon which such amount may be calculated. See "Plan of Distribution." We may not sell any of our securities through agents, underwriters or dealers without delivery of a prospectus supplement describing the method and terms of the offering of our securities.

              Set forth below is additional information regarding offerings of our securities:

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FEES AND EXPENSES

              The following table is intended to assist you in understanding the costs and expenses that an investor in our common stock will bear directly or indirectly. We caution you that some of the percentages indicated in the table below are estimates and may vary. Except where the context suggests otherwise, whenever this prospectus contains a reference to fees or expenses paid or to be paid by "you," "us," "the Company" or "Ares Capital," or that "we" will pay fees or expenses, stockholders will indirectly bear such fees or expenses as investors in Ares Capital.

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Example

              The following example demonstrates the projected dollar amount of total cumulative expenses over various periods with respect to a hypothetical investment in our common stock. In calculating the following expense amounts, we have assumed that we would have no additional leverage, that none of our assets are cash or cash equivalents, and that our annual operating expenses would remain at the levels set forth in the table above. Transaction expenses are not included in the following example. In the event that shares to which this prospectus relates are sold to or through underwriters, a corresponding prospectus supplement will restate this example to reflect the applicable sales load.

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              The foregoing table is to assist you in understanding the various costs and expenses that an investor in our common stock will bear directly or indirectly. While the example assumes, as required by the SEC, a 5% annual return, our performance will vary and may result in a return greater or less than 5%. The incentive fee under the investment advisory and management agreement, which, assuming a 5% annual return, would either not be payable or have an insignificant impact on the expense amounts shown above, is not included in the example. If we achieve sufficient returns on our investments, including through the realization of capital gains, to trigger an incentive fee of a material amount, our expenses, and returns to our investors, would be higher. In addition, while the example assumes reinvestment of all dividends and distributions at net asset value, if our board of directors authorizes and we declare a cash dividend, participants in our dividend reinvestment plan who have not otherwise elected to receive cash will receive a number of shares of our common stock, determined by dividing the total dollar amount of the dividend payable to a participant by the market price per share of our common stock at the close of trading on the valuation date for the dividend. See "Dividend Reinvestment Plan" for additional information regarding our dividend reinvestment plan.

              This example and the expenses in the table above should not be considered a representation of our future expenses as actual expenses (including the cost of debt, if any, and other expenses) may be greater or less than those shown.

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SELECTED CONDENSED CONSOLIDATED FINANCIAL DATA OF ARES CAPITAL

              The following selected financial and other data for the years ended December 31, 2008, 2007, 2006 and 2005, and for the period from June 23, 2004 (inception) through December 31, 2004 are derived from our consolidated financial statements, which have been audited by KPMG LLP, an independent registered public accounting firm whose report thereon is included elsewhere in this prospectus. The selected financial and other data for the nine months ended September 30, 2009 and other quarterly financial information is derived from our unaudited financial statements, but in the opinion of management, reflects all adjustments (consisting only of normal recurring adjustments) that are necessary to present fairly the results of such interim periods. Interim results as of and for the nine months ended September 30, 2009 are not necessarily indicative of the results that may be expected for the year ending December 31, 2009. The data should be read in conjunction with our consolidated financial statements and notes thereto and "Management's Discussion and Analysis of Financial Condition and Results of Operations" and "Senior Securities," which are included elsewhere in this prospectus.

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ARES CAPITAL CORPORATION AND SUBSIDIARIES
SELECTED FINANCIAL DATA
As of and For the Nine Months Ended September 30, 2009, As of and For the Years Ended December 31, 2008, 2007, 2006 and 2005 and As of and For the Period June 23, 2004 (inception)
Through December 31, 2004
(dollar amounts in thousands, except per share data and as otherwise indicated)

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SELECTED QUARTERLY DATA (Unaudited)
(dollar amounts in thousands, except per share data)

 

 

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UNAUDITED SELECTED PRO FORMA CONDENSED CONSOLIDATED FINANCIAL DATA

              The following tables set forth unaudited pro forma condensed consolidated financial data for Ares Capital and Allied Capital as a consolidated entity. The information as of September 30, 2009 is presented as if the Allied Acquisition had been completed on September 30, 2009 and after giving effect to certain transactions that occurred subsequent to September 30, 2009. The unaudited pro forma condensed consolidated operating data for the nine months ended September 30, 2009 and for the year ended December 31, 2008 are presented as if the Allied Acquisition had been completed January 1, 2008. In the opinion of management, all adjustments necessary to reflect the effect of these transactions have been made. The Allied Acquisition will be accounted for under the acquisition method of accounting as provided by ASC 805-10 (previously Statement of Financial Accounting Standards, or "SFAS," No. 141(R)), Business Combinations.

              The unaudited pro forma condensed consolidated financial data should be read together with the respective historical audited and unaudited consolidated financial statements and financial statement notes of Allied Capital and Ares Capital in this document. The unaudited pro forma condensed consolidated financial data are presented for comparative purposes only and do not necessarily indicate what the future operating results or financial position of Ares Capital will be following completion of the Allied Acquisition. The unaudited pro forma condensed consolidated financial data does not include adjustments to reflect any cost savings or other operational efficiencies that may be realized as a result of the Allied Acquisition of Allied Capital and Ares Capital or any future merger related restructuring or integration expenses.

              We cannot assure you that the Allied Acquisition will be consummated as scheduled, or at all. See "Pending Allied Acquisition" for a description of the terms of the Allied Acquisition and "Risk Factors—Risks Relating to Our Business—We may fail to consummate the Allied Acquisition" for a description of the risks associated with a failure to consummate the Allied Acquisition.

(dollar amounts in thousands, except per share data and as otherwise indicated)

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UNAUDITED PRO FORMA PER SHARE DATA

              The following selected unaudited pro forma per share information for the nine months ended September 30, 2009 and for the year ended December 31, 2008 reflects the Allied Acquisition and related transactions as if they had occurred on July 1, 2008. The unaudited pro forma combined net asset value per common share outstanding reflects the Allied Acquisition and related transactions as if they had occurred on September 30, 2009 and certain other transactions that occurred subsequent to September 30, 2009.

              Such unaudited pro forma combined per share information is based on the historical financial statements of Ares Capital and Allied Capital and on publicly available information and certain assumptions and adjustments as discussed in the section entitled "Unaudited Pro Forma Condensed Consolidated Financial Statements." This unaudited pro forma combined per share information is provided for illustrative purposes only and is not necessarily indicative of what the operating results or financial position of Ares Capital or Allied Capital would have been had the Allied Acquisition and related transactions been completed at the beginning of the periods or on the dates indicated, nor are they necessarily indicative of any future operating results or financial position. The following should be read in connection with the section entitled "Unaudited Pro Forma Condensed Consolidated Financial Statements" and other information included in or incorporated by reference into this document.

              We cannot assure you that the Allied Acquisition will be consummated as scheduled, or at all. See "Pending Allied Acquisition" for a description of the terms of the Allied Acquisition and "Risk Factors—Risks Relating to Our Business—We may fail to consummate the Allied Acquisition" for a description of the risks associated with a failure to consummate the Allied Acquisition.

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RISK FACTORS

              Before you invest in our securities, you should be aware of various risks, including those described below. You should carefully consider these risk factors, together with all of the other information included in this prospectus including our consolidated financial statements and the related notes thereto, before you decide whether to make an investment in our securities. The risks set out below are not the only risks we face. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition and/or operating results. If any of the following events occur, our business, financial condition and results of operations could be materially adversely affected. In such case, the net asset value of our common stock and the trading price of our securities could decline, and you may lose all or part of your investment.

RISKS RELATING TO OUR BUSINESS

Capital markets have recently been in a period of disruption and instability. These market conditions have materially and adversely affected debt and equity capital markets in the United States, which has had, and may in the future have, a negative impact on our business and operations.

              Beginning in 2007, the U.S. capital markets entered into a period of disruption as evidenced by a lack of liquidity in the debt capital markets, significant write-offs in the financial services sector, the re-pricing of credit risk in the broadly syndicated credit market and the failure of major financial institutions. Despite actions of the U.S. federal government, these events contributed to worsening general economic conditions that materially and adversely impacted the broader financial and credit markets and reduced the availability of debt and equity capital for the market as a whole and financial services firms in particular. While these conditions appear to be improving, they could continue for a prolonged period of time or worsen in the future. While these conditions persist, we and other companies in the financial services sector may have to access, if available, alternative markets for debt and equity capital in order to grow. Equity capital may be difficult to raise because, subject to some limited exceptions, as a BDC, we are generally not able to issue additional shares of our common stock at a price less than net asset value without first obtaining approval for such issuance from our stockholders and our independent directors. At our 2009 annual stockholders meeting, subject to certain determinations required to be made by our board of directors, our stockholders approved our ability to sell or otherwise issue shares of our common stock, not exceeding 25% of our outstanding common stock at the time of such issuance, at a price below its then current net asset value per share during a period beginning on May 4, 2009 and expiring on the earlier of the anniversary of the date of the 2009 annual stockholders meeting and the date of the our 2010 annual stockholders meeting, which is expected to be held in May 2010. In addition, our ability to incur indebtedness (including by issuing preferred stock) is limited by applicable regulations such that our asset coverage, as defined in the Investment Company Act, must equal at least 200% immediately after each time we incur indebtedness. The debt capital that will be available, if at all, may be at a higher cost and on less favorable terms and conditions in the future. Any inability to raise capital could have a negative effect on our business, financial condition and results of operations.

              Moreover, recent market conditions have made, and may in the future make, it difficult to extend the maturity of or refinance our existing indebtedness and any failure to do so could have a material adverse effect on our business. The illiquidity of our investments may make it difficult for us to sell such investments if required. As a result, we may realize significantly less than the value at which we have recorded our investments.

              Capital markets volatility also affects our investment valuations. While most of our investments are not publicly traded, applicable accounting standards require us to assume as part of our valuation process that our investments are sold in a principal market to market participants (even if we plan on

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holding an investment through its maturity). As a result, volatility in the capital markets can adversely affect our valuations.

              Given the recent extreme volatility and dislocation in the capital markets, many BDCs have faced, and may in the future face, a challenging environment in which to raise capital. As a result of the recent significant changes in the capital markets affecting our ability to raise capital, the pace of our investment activity has slowed. In addition, significant changes in the capital markets, including the recent extreme volatility and disruption, has had, and may in the future have, a negative effect on the valuations of our investments and on the potential for liquidity events involving our investments. An inability to raise capital, and any required sale of our investments for liquidity purposes, could have a material adverse impact on our business, financial condition or results of operations.

A failure on our part to maintain our status as a BDC would significantly reduce our operating flexibility.

              If we fail to maintain our status as a BDC, we might be regulated as a closed-end investment company under the Investment Company Act, which would subject us to additional regulatory restrictions and significantly decrease our operating flexibility. In addition, any such failure could cause an event of default under our outstanding indebtedness, which could have a material adverse effect on our business, financial condition or results of operations.

We are dependent upon Ares Capital Management's key personnel for our future success and upon their access to Ares' investment professionals.

              We depend on the diligence, skill and network of business contacts of Ares Capital Management's key personnel, including its investment committee. We also depend, to a significant extent, on Ares Capital Management's access to the investment professionals of Ares and the information and deal flow generated by Ares' investment professionals in the course of their investment and portfolio management activities. Our future success depends on the continued service of Ares Capital Management's key personnel, including its investment committee. The departure of any of Ares Capital Management's key personnel, including members of its investment committee, or of a significant number of the investment professionals or partners of Ares, could have a material adverse effect on our business, financial condition or results of operations. In addition, we cannot assure you that Ares Capital Management will remain our investment adviser or that we will continue to have access to Ares' investment professionals or its information and deal flow.

Our financial condition and results of operations depend on our ability to manage future growth effectively.

              Our ability to achieve our investment objective depends on our ability to acquire suitable investments and monitor and administer those investments, which depends, in turn, on Ares Capital Management's ability to identify, invest in and monitor companies that meet our investment criteria.

              Accomplishing this result on a cost-effective basis is largely a function of Ares Capital Management's structuring of the investment process and its ability to provide competent, attentive and efficient services to us. Our executive officers and the members of Ares Capital Management's investment committee have substantial responsibilities in connection with their roles at Ares and with the other Ares funds, as well as responsibilities under the investment advisory and management agreement. They may also be called upon to provide managerial assistance to certain of our portfolio companies on behalf of our administrator. These demands on their time, which will increase as the number of investments grow, may distract them or slow the rate of investment. In order to grow, Ares Capital Management will need to hire, train, supervise and manage new employees. However, we cannot assure you that any such employees will be retained. Any failure to manage our future growth

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effectively could have a material adverse effect on our business, financial condition and results of operations.

              In addition, as we grow, we may open up new offices in new geographic regions that may increase our direct operating expenses without corresponding revenue growth.

Our ability to grow depends on our ability to raise capital.

              We will need to periodically access the capital markets to raise cash to fund new investments. Ares has elected to be treated as a RIC and operates in a manner so as to qualify for the U.S. federal income tax treatment applicable to RICs. Among other things, in order to maintain our RIC status, we must distribute to our stockholders on a timely basis generally an amount equal to at least 90% of our investment company taxable income, and, as a result, such distributions will not be available to fund investment originations. We must continue to borrow from financial institutions and issue additional securities to fund our growth. Unfavorable economic or capital market conditions may increase our funding costs, limit our access to the capital markets or could result in a decision by lenders not to extend credit to us. An inability to successfully access the capital markets could limit our ability to grow our business and fully execute our business strategy and could decrease our earnings, if any.

              In addition, with certain limited exceptions, we are only allowed to borrow amounts or issue debt securities or preferred stock such that our asset coverage, as defined in the Investment Company Act, equals at least 200% immediately after such borrowing, which, in certain circumstances, may restrict our ability to borrow or issue debt securities or preferred stock. The amount of leverage that we employ will depend on our investment adviser's and our board of directors' assessments of market and other factors at the time of any proposed borrowing or issuance of debt securities or preferred stock. We cannot assure you that we will be able to maintain our current Facilities or obtain other lines of credit at all or on terms acceptable to us.

Regulations governing our operation as a BDC affect our ability to, and the way in which we, raise additional capital.

              We may issue debt securities or preferred stock, which we refer to collectively as "senior securities," or borrow money from banks or other financial institutions, up to the maximum amount permitted by the Investment Company Act. Under the provisions of the Investment Company Act, we are permitted, as a BDC, to incur indebtedness or issue senior securities only in amounts such that our asset coverage, as defined in the Investment Company Act, equals at least 200% after each such incurrence or issuance. If the value of our assets declines, we may be unable to satisfy this test, which may prohibit us from paying dividends and could prevent us from maintaining our status as a RIC or may prohibit us from repurchasing shares of our common stock. If we cannot satisfy this test, we may be required to sell a portion of our investments at a time when such sales may be disadvantageous and, depending on the nature of our leverage, repay a portion of our indebtedness. As of September 30, 2009, our asset coverage for senior securities was 259%.

              We are not generally able to issue and sell our common stock at a price below net asset value per share. We may, however, sell our common stock, or warrants, options or rights to acquire our common stock, at a price below the current net asset value per share of our common stock if our board of directors determines that such sale is in our best interests and the best interests of our stockholders, and our stockholders approve such sale. Any such sale would be dilutive to the net asset value per share of our common stock. In any such case, the price at which our securities are to be issued and sold may not be less than a price which, in the determination of our board of directors, closely approximates the market value of such securities (less any commission or discount). If our common stock trades at a discount to net asset value, this restriction could adversely affect our ability to raise capital.

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              At our 2009 annual stockholders meeting, subject to the board of directors determination described above, our stockholders approved our ability to sell or otherwise issue shares of our common stock, not exceeding 25% of our outstanding common stock at the time of such issuance, at a price below its then current net asset value per share during a period beginning on May 4, 2009 and expiring on the earlier of the anniversary of the date of the 2009 annual stockholders meeting and the date of our 2010 annual stockholders meeting, which is expected to be held in May 2010.

              To generate cash for funding new investments, we have also securitized, and may in the future seek to securitize, our loans. To securitize loans, we may create a separate, wholly owned subsidiary and contribute or sell a pool of loans to such subsidiary (or one of its subsidiaries). Such subsidiary may then sell equity, issue debt or sell interests in the pool of loans, on a limited-recourse basis, the payments on which are generally limited to the pool of loans and the proceeds therefrom. We may also retain a portion of the equity interests in the securitized pool of loans. Any retained equity would be exposed to losses on the related pool of loans before any of the related debt securities. An inability to successfully securitize our loan portfolio could limit our ability to grow our business and fully execute our business strategy. The securitization market is subject to changing market conditions (including the recent, unprecedented dislocation of the securitization and finance markets generally) and we may not be able to access this market when we would otherwise deem appropriate. Moreover, the successful securitization of our loan portfolio might expose us to losses as the residual loans in which we do not sell interests may be those that are riskier and more apt to generate losses. The Investment Company Act may also impose restrictions on the structure of any securitization.

We borrow money, which magnifies the potential for gain or loss on amounts invested and may increase the risk of investing with us.

              As of September 30, 2009, we had $494.1 million of outstanding borrowings under our Facilities and $273.8 million of CLO Notes (as defined herein). In order for us to cover our annual interest payments on indebtedness, we must achieve annual returns on our September 30, 2009 total assets of at least 1.21%. The weighted average interest rate charged on our borrowings as of September 30, 2009 was 2.02%. We intend to continue borrowing under the Facilities in the future and we may increase the size of the Facilities or issue debt securities or other evidences of indebtedness (although there can be no assurance that we will be successful in doing so). Our ability to service our debt depends largely on our financial performance and is subject to prevailing economic conditions and competitive pressures. The amount of leverage that we employ at any particular time will depend on our investment adviser's and our board of directors' assessments of market and other factors at the time of any proposed borrowing.

              Our Facilities and the CLO Notes impose financial and operating covenants that restrict our business activities, including limitations that could hinder our ability to finance additional loans and investments or to make the distributions required to maintain our status as a RIC. A failure to renew our Facilities or to add new or replacement debt facilities could have a material adverse effect on our business, financial condition or results of operations.

              Borrowings, also known as leverage, magnify the potential for gain or loss on amounts invested and, therefore, increase the risks associated with investing in our securities. We currently borrow under our Facilities, and in the future, may borrow from or issue debt securities to banks, insurance companies and other lenders. Holders of such debt securities have fixed dollar claims on our consolidated assets that are superior to the claims of our common stockholders or any preferred stockholders. If the value of our consolidated assets increases, then leveraging would cause the net asset value per share of our common stock to increase more sharply than it would have had we not leveraged.

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              Conversely, if the value of our consolidated assets decreases, leveraging would cause net asset value to decline more sharply than it otherwise would have had we not leveraged. Similarly, any increase in our consolidated income in excess of consolidated interest payable on the borrowed funds would cause our net income to increase more than it would without the leverage, while any decrease in our consolidated income would cause net income to decline more sharply than it would have had we not borrowed. Such a decline could negatively affect our ability to make common stock dividend payments. There can be no assurance that a leveraging strategy will be successful.

              The following table illustrates the effect on return to a holder of our common stock of the leverage created by our use of borrowing at the interest rate of 2.02% and assumes (a) our total value of net assets as of September 30, 2009; (b) $767.9 million debt outstanding as of September 30, 2009 and (c) hypothetical annual returns on our portfolio of minus 15 to plus 15 percent.

In addition to regulatory requirements that restrict our ability to raise capital, the Facilities and the CLO Notes contain various covenants which, if not complied with, could accelerate repayment under the Facilities and the CLO Notes, thereby materially and adversely affecting our liquidity, financial condition and results of operations.

              The agreements governing the Facilities and the CLO Notes require us to comply with certain financial and operational covenants. These covenants include:

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restrictions on the level of indebtedness that we are permitted to incur in relation to the value of our assets;



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restrictions on our ability to incur liens; and



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maintenance of a minimum level of stockholders' equity.

              As of the date of this prospectus, we are in compliance with the covenants of the Facilities and the CLO Notes. However, our continued compliance with these covenants depends on many factors, some of which are beyond our control. For example, depending on the condition of the public debt and equity markets and pricing levels, net unrealized depreciation in our portfolio may increase in the future. Any such increase could result in our inability to comply with our obligation to restrict the level of indebtedness that we are able to incur in relation to the value of our assets or to maintain a minimum level of stockholders' equity.

              Accordingly, although we believe we will continue to be in compliance, there are no assurances that we will continue to comply with the covenants in the Facilities and the CLO Notes. Failure to comply with these covenants would result in a default under the JPM Revolving Credit Facility, the CP Funding Facility, the CP Funding II Facility or the CLO Notes, which, if we were unable to obtain a

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waiver from the lenders under the JPM Revolving Credit Facility, the purchasers under the CP Funding Facility or CP Funding II Facility, or the trustee or holders of the CLO Notes, respectively, could accelerate repayment under the JPM Revolving Credit Facility, the CP Funding Facility, the CP Funding II Facility or the CLO Notes, respectively, and thereby have a material adverse impact on our business, financial condition and results of operations.

We operate in a highly competitive market for investment opportunities.

              A number of entities compete with us to make the types of investments that we make in middle-market companies. We compete with other BDCs, public and private funds, commercial and investment banks, commercial financing companies, insurance companies, high yield investors, hedge funds, and, to the extent they provide an alternative form of financing, private equity funds. Many of our competitors are substantially larger and have considerably greater financial, technical and marketing resources than we do. Some competitors may have a lower cost of funds and access to funding sources that are not available to us. In addition, some of our competitors may have higher risk tolerances or different risk assessments, which could allow them to consider a wider variety of investments and establish more relationships than us. Furthermore, many of our competitors are not subject to the regulatory restrictions that the Investment Company Act imposes on us as a BDC and that the Code imposes on us as a RIC. We cannot assure you that the competitive pressures we face will not have a material adverse effect on our business, financial condition and results of operations. Also, as a result of this competition, we may not be able to pursue attractive investment opportunities from time to time.

              We do not seek to compete primarily based on the interest rates we offer and we believe that some of our competitors may make loans with interest rates that are comparable to or lower than the rates we offer. Rather, we compete with our competitors based on our existing investment platform, seasoned management team, experience and focus on middle-market companies, disciplined investment philosophy, extensive industry focus and flexible transaction structuring. For a more detailed discussion of these competitive advantages, see "Business—Competitive Advantages."

              We may lose investment opportunities if we do not match our competitors' pricing, terms and structure. If we match our competitors' pricing, terms and structure, we may experience decreased net interest income and increased risk of credit loss. As a result of operating in such a competitive environment, we may make investments that are on better terms to our portfolio companies than what we may have originally anticipated, which may impact our return on these investments.

We may be subject to certain corporate-level taxes regardless of whether we continue to qualify as a RIC.

              We have elected to be treated as a RIC under Subchapter M of the Code and operate in a manner so as to qualify for the U.S. federal income tax treatment applicable to RICs. As a RIC, we generally will not pay corporate-level U.S. federal income taxes on our income and gain that we distribute to our stockholders as dividends on a timely basis. To qualify as a RIC under the Code, we must meet certain income source, asset diversification and annual distribution requirements. We may also be subject to certain U.S. federal excise taxes, as well as state, local and foreign taxes.

              The annual distribution requirement for a RIC is satisfied if we distribute to our stockholders on a timely basis generally an amount equal to at least 90% of our investment company taxable income for each year. Because we use debt financing, we are subject to certain asset coverage ratio requirements under the Investment Company Act and financial covenants under our indebtedness that could, under certain circumstances, restrict us from making distributions necessary to qualify as a RIC. If we are unable to obtain cash from other sources, we may fail to qualify as a RIC and, thus, may be subject to corporate-level income tax. In that event, the resulting corporate-level taxes could

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substantially reduce our net assets, the amount of income available for distribution and the amount of our distributions. Because we must make distributions to our stockholders as described above, such amounts, to the extent a stockholder is not participating in our dividend reinvestment plan, will not be available to fund investment originations. We will be subject to corporate-level U.S. federal income tax on any undistributed income and/or gain.

              To qualify as a RIC, we must also meet certain annual income source requirements at the end of each taxable year and asset diversification requirements at the end of each calendar quarter. Failure to meet these tests may result in our having to (a) dispose of certain investments quickly or (b) raise additional capital to prevent the loss of RIC status. Because most of our investments are in private companies and are generally illiquid, any such dispositions may be at disadvantageous prices and may result in losses. Also, the rules applicable to our qualification as a RIC under the Code are complex with many areas of uncertainty. Accordingly, no assurance can be given that we have qualified or will qualify as a RIC. If we fail to qualify as a RIC for any reason and become subject to regular "C" corporation income tax, the resulting corporate taxes could substantially reduce our net assets, the amount of income available for distribution and the amount of our distributions. Such a failure would have a material adverse effect on us and our stockholders. See "Certain Material U.S. Federal Income Tax Considerations—Taxation as a RIC."

We may have difficulty paying our required distributions under applicable tax rules if we recognize income before or without receiving cash representing such income.

              For U.S. federal income tax purposes, we include in income certain amounts that we have not yet received in cash, such as original issue discount, which may arise if we receive warrants in connection with the making of a loan or possibly in other circumstances, or payment-in-kind interest, which represents contractual interest added to the loan balance and due at the end of the loan term. Such original issue discount or increases in loan balances are included in income before we receive any corresponding cash payments. We also may be required to include in income certain other amounts that we will not receive in cash, including, for example, non-cash income from payment-in-kind securities, deferred payment securities and hedging and foreign currency transactions.

              Since, in certain cases, we may recognize income before or without receiving cash representing such income, we may have difficulty meeting the U.S. federal income tax requirement to distribute generally an amount equal to at least 90% of our investment company taxable income to maintain our status as a RIC. Accordingly, we may have to sell some of our investments at times we would not consider advantageous, raise additional debt or equity capital or reduce new investment originations to meet these distribution requirements. If we are not able to obtain cash from other sources, we may fail to qualify as a RIC and thus be subject to additional corporate-level taxes. See "Certain Material U.S. Federal Income Tax Considerations—Taxation as a RIC."

              If a portfolio company defaults on a loan that is structured to provide accrued interest, it is possible that accrued interest previously used in the calculation of the incentive fee will become uncollectible. The investment adviser is not under any obligation to reimburse us for any part of the incentive fee it received that was based on accrued income that we never receive as a result of a default by an entity on the obligation that resulted in the accrual of such income.

We may in the future determine to fund a portion of our investments with preferred stock, which would magnify the potential for gain or loss and the risks of investing in us in the same way as our borrowings.

              Because preferred stock is another form of leverage and the dividends on any preferred stock we issue must be cumulative, preferred stock has the same risks to our common stockholders as borrowings. Payment of such dividends and repayment of the liquidation preference of such preferred

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stock must take preference over any dividends or other payments to our common stockholders, and preferred stockholders are not subject to any of our expenses or losses and are not entitled to participate in any income or appreciation in excess of their stated preference.

We are exposed to risks associated with changes in interest rates.

              General interest rate fluctuations may have a substantial negative impact on our investments and investment opportunities and, accordingly, may have a material adverse effect on our investment objective and rate of return on invested capital. Because we borrow money and may issue debt securities or preferred stock to make investments, our net investment income is dependent upon the difference between the rate at which we borrow funds or pay interest or dividends on such debt securities or preferred stock and the rate at which we invest these funds. As a result, there can be no assurance that a significant change in market interest rates will not have a material adverse effect on our net investment income. Trading prices for debt that pays a fixed rate of return tend to fall as interest rates rise. Trading prices tend to fluctuate more for fixed-rate securities that have longer maturities. We have entered into certain hedging transactions, such as interest rate swap agreements, to mitigate our exposure to adverse fluctuations in interest rates, and we may continue to do so in the future. However, we cannot assure you that such transactions will be successful in mitigating our exposure to credit risk. Hedging transactions may also limit our ability to participate in the benefits of lower interest rates with respect to our portfolio investments. Although we have no policy governing the maturities of our investments, under current market conditions we expect that we will invest in a portfolio of debt generally having maturities of up to 10 years. This means that we are subject to greater risk (other things being equal) than a fund invested solely in shorter-term securities. A decline in the prices of the debt we own could adversely affect the trading price of our shares. Also, an increase in interest rates available to investors could make investment in our common stock less attractive if we are not able to increase our dividend rate, which could reduce the value of our common stock.

Many of our portfolio investments are not publicly traded and, as a result, there is uncertainty as to the value of our portfolio investments.

              A large percentage of our portfolio investments are not publicly traded. The fair value of investments that are not publicly traded may not be readily determinable. We value these investments quarterly at fair value as determined in good faith by our board of directors based on the input of our management and audit committee and independent valuation firms that have been engaged at the direction of the board to assist in the valuation of each portfolio investment without a readily available market quotation at least once during a trailing six-month period. The valuation process is conducted at the end of each fiscal quarter, with approximately 50% (based on value) of our valuations of portfolio companies without readily available market quotations subject to review by an independent valuation firm each quarter. However, we may use additional independent valuation firms to value our investments more frequently as determined in good faith by our board of directors to the extent necessary to reflect significant events affecting the value of our investments. The types of factors that may be considered in valuing our investments include the enterprise value of the portfolio company, the nature and realizable value of any collateral, the portfolio company's ability to make payments and its earnings, the markets in which the portfolio company does business, comparison to publicly traded companies, discounted cash flow and other relevant factors. Because such valuations, and particularly valuations of private investments and private companies, are inherently uncertain, may fluctuate over short periods of time and may be based on estimates, our determinations of fair value may differ materially from the values that would have been used if a ready market for these investments existed and may differ materially from the values that we may ultimately realize. Our net asset value per share could be adversely affected if our determinations regarding the fair value of these investments are materially higher than the values that we realize upon disposition of such investments.

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The lack of liquidity in our investments may adversely affect our business.

              As we generally make investments in private companies, substantially all of these investments are subject to legal and other restrictions on resale or are otherwise less liquid than publicly traded securities. The illiquidity of our investments may make it difficult for us to sell such investments if the need arises. In addition, if we are required to liquidate all or a portion of our portfolio quickly, we may realize significantly less than the value at which we have recorded our investments. In addition, we may face other restrictions on our ability to liquidate an investment in a portfolio company to the extent that we or an affiliated manager of Ares has material non-public information regarding such portfolio company.

We may experience fluctuations in our quarterly results.

              We could experience fluctuations in our quarterly operating results due to a number of factors, including the interest rates payable on the debt investments we make, the default rates on such investments, the level of our expenses, variations in and the timing of the recognition of realized and unrealized gains or losses and the degree to which we encounter competition in our markets and general economic conditions. As a result of these factors, results for any period should not be relied upon as being indicative of performance in future periods.

There are significant potential conflicts of interest that could impact our investment returns.

              Certain of our executive officers and directors, and members of the investment committee of our investment adviser, serve or may serve as officers, directors or principals of other entities and affiliates of our investment adviser and investment funds managed by our affiliates. Accordingly, they may have obligations to investors in those entities, the fulfillment of which might not be in our or our stockholders' best interests or that may require them to devote time to services for other entities, which could interfere with the time available to provide services to us. For example, Messrs. Ressler, Rosenthal, Kissick and Sachs each will continue to have significant responsibilities for other Ares funds. Messrs. Ressler and Rosenthal are required to devote a substantial majority of their business time, and Mr. Kissick is required to devote a majority of his business time, to the affairs of ACOF. However, Ares believes that the efforts of Messrs. Ressler, Rosenthal and Kissick relative to Ares Capital and ACOF are synergistic with and beneficial to the affairs of each of Ares Capital and ACOF.

              Although other Ares funds generally have different primary investment objectives than Ares Capital, they may from time to time invest in asset classes similar to those targeted by Ares Capital. In addition, Ares is not restricted from raising an investment fund with investment objectives similar to that of Ares Capital. Any such funds may also, from time to time, invest in asset classes similar to those targeted by Ares Capital. Ares Capital Management endeavors to allocate investment opportunities in a fair and equitable manner, and in any event consistent with any fiduciary duties owed to Ares Capital. Nevertheless, it is possible that we may not be given the opportunity to participate in certain investments made by investment funds managed by investment managers affiliated with Ares Capital Management. In addition, there may be conflicts in the allocation of investment opportunities among us and the funds managed by us or one or more of our controlled affiliates, including IHAM, or among the funds they manage. We may or may not participate in investments made by funds managed by us or one or more of our controlled affiliates.

              We have from time to time sold assets to certain funds managed by IHAM and, as part of our investment strategy, we may offer to sell additional assets to funds managed by us and/or one or more of our controlled affiliates or we may purchase assets from funds managed by us and/or one or more of our controlled affiliates. In addition, funds managed by us or one or more of our controlled affiliates may offer assets to or may purchase assets from one another. While assets may be sold or purchased at prices that are consistent with those that could be obtained from third parties in the marketplace, and

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although these types of transactions generally require approval of one or more independent parties, there is an inherent conflict of interest in such transactions between us and funds managed by us or one of our controlled affiliates.

              We pay management and incentive fees to Ares Capital Management, and reimburse Ares Capital Management for certain expenses it incurs. In addition, investors in our common stock will invest on a gross basis and receive distributions on a net basis after expenses, resulting in, among other things, a lower rate of return than one might achieve through direct investments.

              Ares Capital Management's management fee is based on a percentage of our total assets (other than cash or cash equivalents but including assets purchased with borrowed funds) and Ares Capital Management may have conflicts of interest in connection with decisions that could affect our total assets, such as decisions as to whether to incur indebtedness or to engage in the Allied Acquisition.

              The part of the incentive fee payable by us that relates to our pre-incentive fee net investment income is computed and paid on income that may include interest that is accrued but not yet received in cash. If a portfolio company defaults on a loan that is structured to provide accrued interest, it is possible that accrued interest previously used in the calculation of the incentive fee will become uncollectible.

              Our investment adviser, Ares Capital Management, also has financial interests in the Allied Acquisition that are different from, and/or in addition to, the interests of our stockholders. For example, Ares Capital Management's management fee is based on a percentage of Ares Capital's total assets. Because total assets under management will increase as a result of the Allied Acquisition, the dollar amount of Ares Capital Management's management fee will increase as a result of the Allied Acquisition. In addition, the incentive fee payable by us to Ares Capital Management may be positively impacted as a result of the Allied Acquisition. See "Unaudited Pro Forma Condensed Consolidated Financial Statements."

              Our investment advisory and management agreement renews for successive annual periods if approved by our board of directors or by the affirmative vote of the holders of a majority of our outstanding voting securities, including, in either case, approval by a majority of our directors who are not "interested persons" of the Company as defined in Section 2(a)(19) of the Investment Company Act. However, both we and Ares Capital Management have the right to terminate the agreement without penalty upon 60 days' written notice to the other party. Moreover, conflicts of interest may arise if our investment adviser seeks to change the terms of our investment advisory and management agreement, including, for example, the terms for compensation. While any material change to the investment advisory and management agreement must be submitted to stockholders for approval under the Investment Company Act, we may from time to time decide it is appropriate to seek stockholder approval to change the terms of the agreement.

              Pursuant to a separate amended and restated administration agreement, referred to herein as our "administration agreement," Ares Operations, an affiliate of Ares Capital Management, furnishes us with administrative services and we pay Ares Operations our allocable portion of overhead and other expenses incurred by Ares Operations in performing its obligations under the administration agreement, including our allocable portion of the cost of our officers and their respective staffs.

              Our portfolio company, IHAM, is party to a services agreement, referred to herein as the "services agreement," with Ares Capital Management, pursuant to which Ares Capital Management provides IHAM with the facilities, investment advisory services and administrative services necessary for the operations of IHAM. IHAM reimburses Ares Capital Management for the costs associated with such services, including Ares Capital Management's allocable portion of overhead and the cost of its officers and respective staff in performing its obligations under the services agreement.

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              We rent office space directly from a third party pursuant to a lease that expires on February 27, 2011. In addition, we have entered into a sublease with Ares Management whereby Ares Management subleases approximately 25% of the office space for a fixed rent equal to 25% of the basic annual rent payable by us under this lease, plus certain additional costs and expenses.

              As a result of the arrangements described above, there may be times when the management team of Ares Management has interests that differ from those of our stockholders, giving rise to a conflict.

              Our stockholders may have conflicting investment, tax and other objectives with respect to their investments in us. The conflicting interests of individual stockholders may relate to or arise from, among other things, the nature of our investments, the structure or the acquisition of our investments, and the timing of disposition of our investments. As a consequence, conflicts of interest may arise in connection with decisions made by our investment adviser, including with respect to the nature or structuring of our investments, that may be more beneficial for one stockholder than for another stockholder, especially with respect to stockholders' individual tax situations. In selecting and structuring investments appropriate for us, our investment adviser will consider the investment and tax objectives of the Company and our stockholders, as a whole, not the investment, tax or other objectives of any stockholder individually.

Our investment adviser's liability is limited under the investment advisory and management agreement, and we are required to indemnify our investment adviser against certain liabilities, which may lead our investment adviser to act in a riskier manner on our behalf than it would when acting for its own account.

              Our investment adviser has not assumed any responsibility to us other than to render the services described in the investment advisory and management agreement, and it will not be responsible for any action of our board of directors in declining to follow our investment adviser's advice or recommendations. Pursuant to the investment advisory and management agreement, our investment adviser and its managing members, officers and employees will not be liable to us for their acts under the investment advisory and management agreement, absent willful misfeasance, bad faith, gross negligence or reckless disregard in the performance of their duties. We have agreed to indemnify, defend and protect our investment adviser and its managing members, officers and employees with respect to all damages, liabilities, costs and expenses resulting from acts of our investment adviser not arising out of willful misfeasance, bad faith, gross negligence or reckless disregard in the performance of their duties under the investment advisory and management agreement. These protections may lead our investment adviser to act in a riskier manner when acting on our behalf than it would when acting for its own account. See "Risk Factors—Risks Relating to Our Investments—Our investment adviser's incentive fee may induce Ares Capital Management to make certain investments, including speculative investments."

We may be obligated to pay our investment adviser incentive compensation even if we incur a loss.

              Our investment adviser is entitled to incentive compensation for each fiscal quarter in an amount equal to a percentage of the excess of our pre-incentive fee net investment income for that quarter (before deducting incentive compensation, net operating losses and certain other items) above a threshold return for that quarter. Our pre-incentive fee net investment income for incentive compensation purposes excludes realized and unrealized capital losses or depreciation that we may incur in the fiscal quarter, even if such capital losses or depreciation result in a net loss on our statement of operations for that quarter. Thus, we may be required to pay our manager incentive compensation for a fiscal quarter even if there is a decline in the value of our portfolio or we incur a net loss for that quarter.

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              Under the investment advisory and management agreement, we will defer cash payment of any incentive fee otherwise earned by our investment adviser if, during the most recent four full calendar quarter periods ending on or prior to the date such payment is to be made, the sum of (a) our aggregate distributions to our stockholders and (b) our change in net assets (defined as total assets less indebtedness and before taking into account any incentive fees payable during the period) is less than 8.0% of our net assets at the beginning of such period. These calculations will be adjusted for any share issuances or repurchases. Any deferred incentive fees will be carried over for payment in subsequent calculation periods to the extent such payment can then be made under the investment advisory and management agreement.

Changes in laws or regulations governing our operations, or changes in the interpretation thereof, and any failure by us to comply with laws or regulations governing our operations may adversely affect our business.

              We and our portfolio companies are subject to regulation by laws at the local, state and federal levels. These laws and regulations, as well as their interpretation, may be changed from time to time. Accordingly, any change in these laws or regulations, or their interpretation, or any failure by us to comply with these laws or regulations may adversely affect our business.

We may not replicate Ares' historical success and our ability to enter into transactions with Ares and our other affiliates is restricted.

              Our primary focus in making investments differs from those of other private funds that are or have been managed by Ares' investment professionals. Further, investors in Ares Capital are not acquiring an interest in other Ares managed funds. Accordingly, we cannot assure you that Ares Capital will replicate Ares' historical success, and we caution you that our investment returns could be substantially lower than the returns achieved by those private funds.

              Further, we and certain of our controlled affiliates are prohibited under the Investment Company Act from knowingly participating in certain transactions with our upstream affiliates, our investment adviser and its affiliates without the prior approval of our independent directors and, in some cases, the SEC. Any person that owns, directly or indirectly, 5% or more of our outstanding voting securities is our upstream affiliate for purposes of the Investment Company Act and we are generally prohibited from buying or selling any security from or to such affiliate, absent the prior approval of our independent directors. The Investment Company Act also prohibits "joint" transactions with an upstream affiliate, or our investment adviser or its affiliates, which could include investments in the same portfolio company (whether at the same or different times), without prior approval of our independent directors. In addition, we and certain of our controlled affiliates are prohibited from buying or selling any security from or to, or entering into joint transactions with, our investment adviser and its affiliates, or any person who owns more than 25% of our voting securities or is otherwise deemed to control, be controlled by, or be under common control with us, absent the prior approval of the SEC through an exemptive order (other than in certain limited situations pursuant to current regulatory guidance). The analysis of whether a particular transaction constitutes a joint transaction requires a review of the relevant facts and circumstances then existing.

              We have applied for an exemptive order from the SEC that would permit us and certain of our controlled affiliates to co-invest with funds managed by Ares. Any such order will be subject to certain terms and conditions and there can be no assurance that such order will be granted by the SEC. Accordingly, we cannot assure you that we or our controlled affiliates will be permitted to co-invest with funds managed by Ares, other than in the limited circumstances currently permitted by regulatory guidance or in the absence of a joint transaction.

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We may fail to consummate the Allied Acquisition.

              While there can be no assurances as to the exact timing, or that the Allied Acquisition will be completed at all, we are working to complete the Allied Acquisition in the first quarter of 2010. The consummation of the Allied Acquisition is subject to certain conditions, including, among others, Allied Capital stockholder approval, our stockholder approval, required regulatory approvals (including expiration of the waiting period under the HSR Act, the early termination of which was granted on December 1, 2009), receipt of certain of our and Allied Capital's lender consents and other customary closing conditions. We intend to consummate the Allied Acquisition as soon as possible; however, we cannot assure you that the conditions required to consummate the Allied Acquisition will be satisfied or waived on the anticipated schedule, or at all. If the Allied Acquisition is not completed, we will have incurred substantial expenses for which no ultimate benefit will have been received. See "Risk Factors—Risks Relating to a Consummation of the Allied Acquisition—If the Allied Acquisition does not close, we won't benefit from the expenses incurred in its pursuit." In addition, the Merger Agreement provides for the payment by us to Allied Capital of a reverse termination fee of $30 million under certain circumstances. See "Risk Factors—Risks Relating to a Consummation of the Allied Acquisition—Under certain circumstances, we and Allied Capital are obligated to pay each other a termination fee upon termination of the Merger Agreement." See "Pending Allied Acquisition" for a description of the terms of the Allied Acquisition and "Risk Factors—Risks Relating to a Consummation of the Allied Acquisition" for a description of the risks that the combined company may face if the Allied Acquisition is consummated. Any investment decision you make should be made independent of the consummation of the Allied Acquisition.

RISKS RELATING TO OUR INVESTMENTS

Price declines and illiquidity in the corporate debt markets have adversely affected, and may in the future adversely affect, the fair value of our portfolio investments, reducing our net asset value through increased net unrealized depreciation.

              As a BDC, we are required to carry our investments at market value or, if no market value is ascertainable, at fair value as determined in good faith by or under the direction of our board of directors. We may take into account the following types of factors, if relevant, in determining the fair value of our investments: the enterprise value of a portfolio company (an estimate of the total fair value of the portfolio company's debt and equity), the nature and realizable value of any collateral, the portfolio company's ability to make payments and its earnings and discounted cash flow, the markets in which the portfolio company does business, a comparison of the portfolio company's securities to publicly traded securities, changes in the interest rate environment and the credit markets generally that may affect the price at which similar investments may be made in the future and other relevant factors. When an external event such as a purchase transaction, public offering or subsequent equity sale occurs, we use the pricing indicated by the external event to corroborate our valuation. Decreases in the market values or fair values of our investments are recorded as unrealized depreciation. Unprecedented declines in prices and liquidity in the corporate debt markets resulted in significant net unrealized depreciation in our portfolio in the recent past. The effect of all of these factors on our portfolio has reduced our net asset value by increasing net unrealized depreciation in our portfolio. Depending on market conditions, we could incur substantial realized losses and may suffer additional unrealized losses in future periods, which could have a material adverse impact on our business, financial condition and results of operations.

Economic recessions or downturns could impair our portfolio companies and harm our operating results.

              As of the date of this prospectus, the economy recently has been in the midst of a recession and in the difficult part of a credit cycle with industry defaults increasing. Many of our portfolio

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companies may be materially and adversely affected by the credit cycle and, in turn, may be unable to satisfy their financial obligations (including their loans to us) over the coming months.

              Many of our portfolio companies may be susceptible to economic slowdowns or recessions and may be unable to repay our loans during these periods. Therefore, our non-performing assets may increase and the value of our portfolio may decrease during these periods if we are required to write down the values of our investments. Adverse economic conditions also may decrease the value of collateral securing some of our loans and the value of our equity investments. Economic slowdowns or recessions could lead to financial losses in our portfolio and a decrease in revenues, net income and assets. Unfavorable economic conditions also could increase our funding costs, limit our access to the capital markets or result in a decision by lenders not to extend credit to us. These events could prevent us from increasing investments and harm our operating results.

              A portfolio company's failure to satisfy financial or operating covenants imposed by us or other lenders could lead to defaults and, potentially, acceleration of the time when the loans are due and foreclosure on its secured assets, which could trigger cross defaults under other agreements and jeopardize our portfolio company's ability to meet its obligations under the debt that we hold and the value of any equity securities we own. We may incur expenses to the extent necessary to seek recovery upon default or to negotiate new terms with a defaulting portfolio company.

Investments in privately held middle-market companies involve significant risks.

              We primarily invest in privately held U.S. middle-market companies. Investments in privately held middle-market companies involve a number of significant risks, including the following:

•

these companies may have limited financial resources and may be unable to meet their obligations, which may be accompanied by a deterioration in the value of any collateral and a reduction in the likelihood of us realizing any guarantees we may have obtained in connection with our investment;



•

they typically have shorter operating histories, narrower product lines and smaller market shares than larger businesses, which tend to render them more vulnerable to competitors' actions and market conditions, as well as general economic downturns;



•

they typically depend on the management talents and efforts of a small group of persons; therefore, the death, disability, resignation or termination of one or more of these persons could have a material adverse impact on our portfolio company and, in turn, on us;



•

there is generally little public information about these companies. These companies and their financial information are not subject to the Sarbanes Oxley Act of 2002 and other rules that govern public companies, and we may be unable to uncover all material information about these companies, which may prevent us from making a fully informed investment decision and cause us to lose money on our investments;



•

they generally have less predictable operating results, and may require substantial additional capital to support their operations, finance expansion or maintain their competitive position. In addition, our executive officers, directors and our investment adviser may, in the ordinary course of business, be named as defendants in litigation arising from our investments in the portfolio companies; and



•

they may have difficulty accessing the capital markets to meet future capital needs.

Our debt investments may be risky, and we could lose all or part of our investment.

              The debt that we invest in is typically not initially rated by any rating agency, but we believe that if such investments were rated, they would be below investment grade (rated lower than "Baa3" by

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Moody's Investors Service or lower than "BBB-" by Standard & Poor's). Indebtedness of below investment grade quality is regarded as having predominantly speculative characteristics with respect to the issuer's capacity to pay interest and repay principal. Our mezzanine investments may result in an above average amount of risk and volatility or loss of principal. We also invest in assets other than mezzanine investments, including first and second lien loans, high-yield securities, U.S. government securities, credit derivatives and other structured securities and certain direct equity investments. These investments will entail additional risks that could adversely affect our investment returns. In addition, to the extent interest payments associated with such debt are deferred, such debt will be subject to greater fluctuations in value based on changes in interest rates. Also, such debt could subject us to phantom income, and since we generally do not receive any cash prior to maturity of the debt, the investment is of greater risk.

Investments in equity securities involve a substantial degree of risk.

              We may purchase common and other equity securities. Although common stocks have historically generated higher average total returns than fixed income securities over the long term, common stocks also have experienced significantly more volatility in those returns and in recent years have significantly under performed relative to fixed income securities. The equity securities we acquire may fail to appreciate and may decline in value or become worthless and our ability to recover our investment will depend on our portfolio company's success. Investments in equity securities involve a number of significant risks, including:

•

any equity investment we make in a portfolio company could be subject to further dilution as a result of the issuance of additional equity interests and to serious risks as a junior security that will be subordinate to all indebtedness or senior securities in the event that the issuer is unable to meet its obligations or becomes subject to a bankruptcy process;



•

to the extent that the portfolio company requires additional capital and is unable to obtain it, we may not recover our investment in equity securities; and



•

in some cases, equity securities in which we invest will not pay current dividends, and our ability to realize a return on our investment, as well as to recover our investment, will be dependent on the success of our portfolio companies. Even if the portfolio companies are successful, our ability to realize the value of our investment may be dependent on the occurrence of a liquidity event, such as a public offering or the sale of the portfolio company. It is likely to take a significant amount of time before a liquidity event occurs or we can sell our equity investments. In addition, the equity securities we receive or invest in may be subject to restrictions on resale during periods in which it could be advantageous to sell.

              There are special risks associated with investing in preferred securities, including:

•

preferred securities may include provisions that permit the issuer, at its discretion, to defer distributions for a stated period without any adverse consequences to the issuer. If we own a preferred security that is deferring its distributions, we may be required to report income for tax purposes although it has not yet received such income;



•

preferred securities are subordinated to debt in terms of priority to corporate income and liquidation payments, and therefore will be subject to greater credit risk than debt;



•

preferred securities may be substantially less liquid than many other securities, such as common stocks or U.S. government securities; and



•

generally, preferred security holders have no voting rights with respect to the issuing company, subject to limited exceptions.

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              Additionally, when we invest in first and second lien senior loans or mezzanine debt, we may acquire warrants or other equity securities as well. Our goal is ultimately to dispose of such equity interests and realize gains upon our disposition of such interests. However, the equity interests we receive may not appreciate in value and, in fact, may decline in value. Accordingly, we may not be able to realize gains from our equity interests, and any gains that we do realize on the disposition of any equity interests may not be sufficient to offset any other losses we experience.

              We may invest, to the extent permitted by law, in the equity securities of investment funds that are operating pursuant to certain exceptions to the Investment Company Act and in advisers to similar investment funds, and, to the extent we so invest, will bear our ratable share of any such company's expenses, including management and performance fees. We will also remain obligated to pay management and incentive fees to Ares Capital Management with respect to the assets invested in the securities and instruments of such companies. With respect to each of these investments, each of our common stockholders will bear his or her share of the management and incentive fee of Ares Capital Management as well as indirectly bearing the management and performance fees and other expenses of any such investment funds or advisers.

There may be circumstances where our debt investments could be subordinated to claims of other creditors or we could be subject to lender liability claims.

              If one of our portfolio companies were to go bankrupt, even though we may have structured our interest as senior debt, depending on the facts and circumstances, a bankruptcy court might recharacterize our debt holding as an equity investment and subordinate all or a portion of our claim to that of other creditors. In addition, lenders can be subject to lender liability claims for actions taken by them where they become too involved in the borrower's business or exercise control over the borrower. For example, we could become subject to a lender's liability claim, if, among other things, we actually render significant managerial assistance.

Our portfolio companies may incur debt or issue equity securities that rank equally with, or senior to, our investments in such companies.

              Our portfolio companies may have, or may be permitted to incur, other debt, or issue other equity securities, that rank equally with, or senior to, our investments. By their terms, such instruments may provide that the holders are entitled to receive payment of dividends, interest or principal on or before the dates on which we are entitled to receive payments in respect of our investments. These debt instruments usually prohibit the portfolio companies from paying interest on or repaying our investments in the event and during the continuance of a default under such debt. Also, in the event of insolvency, liquidation, dissolution, reorganization or bankruptcy of a portfolio company, holders of securities ranking senior to our investment in that portfolio company typically are entitled to receive payment in full before we receive any distribution in respect of our investment. After repaying such holders, the portfolio company may not have any remaining assets to use for repaying its obligation to us. In the case of securities ranking equally with our investments, we would have to share on an equal basis any distributions with other security holders in the event of an insolvency, liquidation, dissolution, reorganization or bankruptcy of the relevant portfolio company.

              The rights we may have with respect to the collateral securing any junior priority loans we make to our portfolio companies may also be limited pursuant to the terms of one or more intercreditor agreements that we enter into with the holders of senior debt. Under such an intercreditor agreement, at any time that senior obligations are outstanding, we may forfeit certain rights with respect to the collateral to the holders of the senior obligations. These rights may include the right to commence enforcement proceedings against the collateral, the right to control the conduct of such enforcement proceedings, the right to approve amendments to collateral documents, the right to release liens on the collateral and the right to waive past defaults under collateral documents. We may not

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have the ability to control or direct such actions, even if as a result our rights as junior lenders are adversely affected.

When we are a debt or minority equity investor in a portfolio company, we may not be in a position to exert influence on the entity, and management of the company may make decisions that could decrease the value of our portfolio holdings.

              We make both debt and minority equity investments; therefore, we are subject to the risk that a portfolio company may make business decisions with which we disagree, and the stockholders and management of such company may take risks or otherwise act in ways that do not serve our interests. As a result, a portfolio company may make decisions that could decrease the value of our investment.

Our portfolio companies may be highly leveraged.

              Some of our portfolio companies may be highly leveraged, which may have adverse consequences to these companies and to us as an investor. These companies may be subject to restrictive financial and operating covenants and the leverage may impair these companies' ability to finance their future operations and capital needs. As a result, these companies' flexibility to respond to changing business and economic conditions and to take advantage of business opportunities may be limited. Further, a leveraged company's income and net assets will tend to increase or decrease at a greater rate than if borrowed money were not used.

Our investment adviser's incentive fee may induce Ares Capital Management to make certain investments, including speculative investments.

              The incentive fee payable by us to Ares Capital Management may create an incentive for Ares Capital Management to make investments on our behalf that are risky or more speculative than would be the case in the absence of such compensation arrangement. The way in which the incentive fee payable to our investment adviser is determined, which is calculated as a percentage of the return on invested capital, may encourage our investment adviser to use leverage to increase the return on our investments. Under certain circumstances, the use of leverage may increase the likelihood of default, which would disfavor the holders of our common stock, including investors in offerings of common stock, securities convertible into our common stock or warrants representing rights to purchase our common stock or securities convertible into our common stock pursuant to this prospectus. In addition, the investment adviser will receive the incentive fee based, in part, upon net capital gains realized on our investments. Unlike the portion of the incentive fee based on income, there is no hurdle rate applicable to the portion of the incentive fee based on net capital gains. As a result, the investment adviser may have a tendency to invest more in investments that are likely to result in capital gains as compared to income producing securities. Such a practice could result in our investing in more speculative securities than would otherwise be the case, which could result in higher investment losses, particularly during economic downturns. The part of the incentive fee payable by us that relates to our pre-incentive fee net investment income will be computed and paid on income that may include interest that is accrued but not yet received in cash. If a portfolio company defaults on a loan that is structured to provide accrued interest, it is possible that accrued interest previously used in the calculation of the incentive fee will become uncollectible. The investment adviser is not under any obligation to reimburse us for any part of the incentive fee it received that was based on such accrued interest that we never actually receive.

              Because of the structure of the incentive fee, it is possible that we may have to pay an incentive fee in a quarter where we incur a loss. For example, if we receive pre-incentive fee net investment income in excess of the hurdle rate for a quarter, we will pay the applicable incentive fee even if we have incurred a loss in that quarter due to realized capital losses. In addition, if market interest rates rise, we may be able to invest our funds in debt instruments that provide for a higher

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return, which would increase our pre-incentive fee net investment income and make it easier for our investment adviser to surpass the fixed hurdle rate and receive an incentive fee based on such net investment income.

Our investments in foreign debt may involve significant risks in addition to the risks inherent in U.S. investments. We may expose ourselves to risks if we engage in hedging transactions.

              Our investment strategy contemplates potential investments in debt of foreign companies. Investing in foreign companies may expose us to additional risks not typically associated with investing in U.S. companies. These risks include changes in exchange control regulations, political and social instability, expropriation, imposition of foreign taxes (potentially at confiscatory levels), less liquid markets, less available information than is generally the case in the United States, higher transaction costs, less government supervision of exchanges, brokers and issuers, less developed bankruptcy laws, difficulty in enforcing contractual obligations, lack of uniform accounting and auditing standards and greater price volatility.

              Although most of our investments will be U.S. dollar denominated, our investments that are denominated in a foreign currency will be subject to the risk that the value of a particular currency will change in relation to one or more other currencies. Among the factors that may affect currency values are trade balances, the level of short-term interest rates, differences in relative values of similar assets in different currencies, long-term opportunities for investment and capital appreciation, and political developments. We may employ hedging techniques to minimize these risks, but we cannot assure you that such strategies will be effective.

              We have and may in the future enter into hedging transactions, which may expose us to risks associated with such transactions. We may utilize instruments such as forward contracts, currency options and interest rate swaps, caps, collars and floors to seek to hedge against fluctuations in the relative values of our portfolio positions from changes in currency exchange rates and market interest rates. Use of these hedging instruments may include counter party credit risk. Hedging against a decline in the values of our portfolio positions does not eliminate the possibility of fluctuations in the values of such positions or prevent losses if the values of such positions decline. However, such hedging can establish other positions designed to gain from those same developments, thereby offsetting the decline in the value of such portfolio positions. Such hedging transactions may also limit the opportunity for gain if the values of the underlying portfolio positions should increase. Moreover, it may not be possible to hedge against an exchange rate or interest rate fluctuation that is so generally anticipated that we are not able to enter into a hedging transaction at an acceptable price.

              The success of our hedging transactions will depend on our ability to correctly predict movements, currencies and interest rates. Therefore, while we may enter into such transactions to seek to reduce currency exchange rate and interest rate risks, unanticipated changes in currency exchange rates or interest rates may result in poorer overall investment performance than if we had not engaged in any such hedging transactions. In addition, the degree of correlation between price movements of the instruments used in a hedging strategy and price movements in the portfolio positions being hedged may vary. Moreover, for a variety of reasons, we may not seek to establish a perfect correlation between such hedging instruments and the portfolio holdings being hedged. Any such imperfect correlation may prevent us from achieving the intended hedge and expose us to risk of loss. In addition, it may not be possible to hedge fully or perfectly against currency fluctuations affecting the value of securities denominated in non-U.S. currencies because the value of those securities is likely to fluctuate as a result of factors not related to currency fluctuations. See also "Risk Factors—Risk Relating to our Business—We are exposed to risks associated with changes in interest rates."

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We may initially invest a portion of the net proceeds of offerings pursuant to this prospectus primarily in high-quality short-term investments, which will generate lower rates of return than those expected from the interest generated on first and second lien loans and mezzanine debt.

              We may initially invest a portion of the net proceeds of offerings primarily in cash, cash equivalents, U.S. government securities and other high-quality short-term investments. These securities may earn yields substantially lower than the income that we anticipate receiving once we are fully invested in accordance with our investment objective. As a result, we may not be able to achieve our investment objective and/or pay any dividends during this period or, if we are able to do so, such dividends may be substantially lower than the dividends that we expect to pay when our portfolio is fully invested. If we do not realize yields in excess of our expenses, we may incur operating losses and the market price of our shares may decline.

RISKS RELATING TO A CONSUMMATION OF THE ALLIED ACQUISITION

Consummation of the Allied Acquisition will cause immediate dilution to our stockholders' voting interests in us and may cause immediate dilution to the net asset value per share of our common stock.

              Upon consummation of the Allied Acquisition, each of Allied Capital's common shares issued and outstanding immediately prior to the effective time of the Allied Acquisition will be converted into and become exchangeable for 0.325 of our common shares, subject to the payment of cash instead of fractional shares. If the Allied Acquisition is consummated, based on the number of our common shares issued and outstanding on the date hereof and assuming that holders of all "in-the-money" Allied Capital stock options elect to be cashed out, our stockholders will own approximately 65% of the combined company's outstanding common stock and Allied Capital stockholders will own approximately 35% of the combined company's outstanding common stock. Consequently, our stockholders should expect to exercise less influence over the management and policies of the combined company following the Allied Acquisition than they currently exercise over our management and policies.

              The exchange ratio of 0.325 of a share of our common stock for each share of Allied Capital common stock was fixed on October 26, 2009, the date of the signing of the Merger Agreement, and is not subject to adjustment based on changes in the trading price of our or Allied Capital common stock before the closing of the Allied Acquisition. Any change in the market price of our common stock prior to completion of the Allied Acquisition will affect the market value of the Allied Acquisition consideration that Allied Capital common stockholders will receive upon completion of the Allied Acquisition. It is possible that the conversion of Allied Capital common shares into our common shares may result in the issuance of our common shares at a price below our net asset value per share at the time of such conversion, which would result in dilution to the net asset value per share of our common stock. For a description of the impact of such an issuance, see "Risk Factors—Risks Relating to Offerings Pursuant to this Prospectus—The net asset value per share of our common stock may be diluted if we sell shares of our common stock in one or more offerings at prices below the then current net asset value per share of our common stock or securities to subscribe for or convertible into shares of our common stock."

              We cannot assure you that the Allied Acquisition will be consummated as scheduled, or at all. See "Pending Allied Acquisition" for a description of the terms of the Allied Acquisition and "Risk Factors—Risks Relating to Our Business—We may fail to consummate the Allied Acquisition" for a description of the risks associated with a failure to consummate the Allied Acquisition."

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We may be unable to realize the benefits anticipated by the Allied Acquisition, including estimated cost savings and synergies, or it may take longer than anticipated to achieve such benefits.

              The realization of certain benefits anticipated as a result of the Allied Acquisition will depend in part on the integration of Allied Capital's investment portfolio with our investment portfolio and the integration of Allied Capital's business with our business. There can be no assurance that Allied Capital's business can be operated profitably or integrated successfully into our operations in a timely fashion, or at all. The dedication of management resources to such integration may detract attention from our day-to-day business and there can be no assurance that there will not be substantial costs associated with the transition process or there will not be other material adverse effects as a result of these integration efforts. Such effects, including, but not limited to, incurring unexpected costs or delays in connection with such integration and failure of Allied Capital's investment portfolio to perform as expected, could have a material adverse effect on our financial results.

              We also expect to achieve certain cost savings and synergies from the Allied Acquisition when the two companies have fully integrated their portfolios. It is possible that our estimates of the potential cost savings and synergies could turn out to be incorrect. The cost savings and synergies estimates also assume our ability to combine our business with Allied Capital's business in a manner that permits those cost savings and synergies to be fully realized. If the estimates turn out to be incorrect or we are not able to successfully combine the businesses of the two companies, the anticipated cost savings and synergies may not be fully realized, or realized at all, or may take longer to realize than expected.

Our inability to obtain rating agency confirmation and the third party consents of financing providers to us and Allied Capital necessary to complete the transaction could delay or prevent the completion of the Allied Acquisition.

              Our obligation to complete the Allied Acquisition is subject to the prior receipt of all approvals and consents required to be obtained from applicable agents, lenders, noteholders and other parties with respect to (1) the JPM Revolving Credit Facility, the CP Funding Facility, the CP Funding II Facility and the CLO Notes and (2) Allied Capital's private notes and bank facility. If the Merger Agreement is terminated because the Allied Acquisition has not occurred by June 30, 2010 by reason of the fact that such consents have not been obtained and all of our other closing conditions have been satisfied, then we will be required to pay Allied Capital a reverse termination fee of $30 million.

              We currently intend to (1) increase the maximum amount available under the JPM Revolving Credit Facility from $525 million to up to at least $700 million, (2) seek consents permitting the Allied Acquisition under the CP Funding Facility and the CP Funding II Facility, (3) seek rating agency confirmation with respect to the CLO Notes, (4) refinance or seek consents in respect of the Allied Acquisition with respect to Allied Capital's private notes, (5) assume Allied Capital's public notes pursuant to a supplemental indenture satisfactory to the trustee thereof and (6) retire Allied Capital's bank facility.

              Although we expect to obtain in a timely manner the confirmations, consents and approvals necessary to complete the pending Allied Acquisition and/or to engage in certain refinancing transactions in connection therewith, if we are unable to timely obtain such confirmations, consents, approvals or refinancings, the closing of the Allied Acquisition could be significantly delayed or the Allied Acquisition may not occur at all.

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The Allied Acquisition or subsequent combination may trigger certain "change of control" provisions and other restrictions in certain of our and Allied Capital's contracts and the failure to obtain any required consents or waivers could adversely impact the combined company.

              Certain agreements of Allied Capital and Ares Capital or their controlled affiliates, including with respect to certain managed funds of Allied Capital and its affiliates, will or may require the consent of one or more counterparties in connection with the Allied Acquisition or subsequent combination. The failure to obtain any such consent may permit such counter-parties to terminate, or otherwise increase their rights or our or Allied Capital's obligations under, any such agreement because the Allied Acquisition may violate an anti-assignment, change of control or similar provision. If this happens, we may have to seek to replace that agreement with a new agreement or seek a waiver or amendment to such agreement. We cannot assure you that we will be able to replace, amend or obtain a waiver under any such agreement on comparable terms or at all.

              If any such agreement is material, the failure to obtain consents, amendments or waivers under, or to replace on similar terms or at all, any of these agreements could adversely affect the financial performance or results of operations of the combined company following the Allied Acquisition and subsequent combination, including preventing us from operating a material part of Allied Capital's business.

              In addition, the consummation of the Allied Acquisition and subsequent combination may violate, conflict with, result in a breach of any provision of or the loss of any benefit under, constitute a default (or an event that, with or without notice or lapse of time or both, would constitute a default) under, or result in the termination, cancellation, acceleration or other change of any right or obligation (including any payment obligation) under our or Allied Capital's agreements. Any such violation, conflict, breach, loss, default or other effect could, either individually or in the aggregate, have a material adverse effect on the financial condition, results of operations, assets or business of the combined company following completion of the Allied Acquisition and subsequent combination.

Several lawsuits have been filed against Allied Capital, members of Allied Capital's board of directors, us and the merger subsidiary challenging the Allied Acquisition. An adverse ruling in any such lawsuit may prevent the Allied Acquisition from becoming effective within the expected timeframe, or at all. If the Allied Acquisition is consummated, these lawsuits and other legal proceedings could have a material impact on the results of operations, cash flows or financial condition of the combined company.

              We and Allied Capital are aware that a number of lawsuits have been filed by stockholders of Allied Capital challenging the Allied Acquisition. The suits are filed either as putative stockholder class actions, shareholder derivative actions or both. All of the actions assert similar claims against the members of Allied Capital's board of directors alleging that the Merger Agreement is the product of a flawed sales process and that Allied Capital's directors breached their fiduciary duties by agreeing to a structure that was not designed to maximize the value of Allied Capital's stockholders and by failing to adequately value and obtain fair consideration for Allied Capital's shares. They also claim that we (and, in several cases, the merger subsidiary, and, in several other cases, Allied Capital) aided and abetted the directors' alleged breaches of fiduciary duties. All of the actions demand, among other things, a preliminary and permanent injunction enjoining the Allied Acquisition and rescinding the transaction or any part thereof that may be implemented. Such legal proceedings could delay or prevent the transaction from becoming effective within the agreed upon timeframe, or at all, and, if the Allied Acquisition is consummated, may be material to the results of operations, cash flows or financial condition of the combined company.

              Allied Capital is also involved in various other legal proceedings. In addition, Allied Capital's portfolio company, Ciena, is the subject of ongoing governmental investigations, audits and reviews being conducted by the Small Business Administration, the United States Secret Service, the

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U.S. Department of Agriculture and the U.S. Department of Justice. Neither we nor Allied Capital can predict the eventual outcome of these investigations, audits and reviews or other legal proceedings and the ultimate outcome of such matters could, upon consummation of the Allied Acquisition, be material to the results of operations, cash flows or financial condition of the combined company. It is possible that third parties could try to seek to impose liability against the combined company in connection with these matters.

If the Allied Acquisition does not close, we won't benefit from the expenses incurred in its pursuit.

              The Allied Acquisition may not be completed. If the Allied Acquisition is not completed, we will have incurred substantial expenses for which no ultimate benefit will have been received. We have incurred out-of-pocket expenses in connection with the Allied Acquisition for investment banking, legal and accounting fees and financial printing and other related charges, much of which will be incurred even if the Allied Acquisition is not completed.

Termination of the Merger Agreement could negatively impact us.

              If the Merger Agreement is terminated, there may be various consequences, including:

•

Our business may have been adversely impacted by the failure to pursue other beneficial opportunities due to the focus of management on the Allied Acquisition, without realizing any of the anticipated benefits of completing the Allied Acquisition;



•

the market price of our common stock might decline to the extent that the market price prior to termination reflects a market assumption that the Allied Acquisition will be completed; and



•

the payment of any reverse termination fee, if required under the circumstances, could adversely affect our financial condition and liquidity.

Under certain circumstances, we and Allied Capital are obligated to pay each other a termination fee upon termination of the Merger Agreement.

              No assurance can be given that the Allied Acquisition will be completed. The Merger Agreement provides for the payment by Allied Capital to us of a termination fee of $30 million if the Allied Acquisition is terminated by Allied Capital or us under certain circumstances ($15 million if Allied Capital stockholders do not approve the Allied Acquisition and the Merger Agreement). In addition, the Merger Agreement provides for a payment by us to Allied Capital of a reverse termination fee of $30 million under certain other circumstances. See "Pending Allied Acquisition" for a description of the terms of the Allied Acquisition.

The market price of our common stock after the Allied Acquisition may be affected by factors different from those affecting our common stock currently.

              Our business differs from that of Allied Capital in some respects and, accordingly, the results of operations of the combined company and the market price of our shares of common stock after the Allied Acquisition may be affected by factors different from those currently affecting our results of operations prior to the consummation of the Allied Acquisition.

RISKS RELATING TO OFFERINGS PURSUANT TO THIS PROSPECTUS

Our shares of common stock have recently traded at a discount from net asset value and may do so again in the future, which could limit our ability to raise additional equity capital.

              Shares of closed-end investment companies frequently trade at a market price that is less than the net asset value that is attributable to those shares. This characteristic of closed-end investment

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companies is separate and distinct from the risk that our net asset value per share may decline. It is not possible to predict whether any shares of common stock offered hereby will trade at, above, or below net asset value. As of the date of this prospectus, the stocks of BDCs as an industry, including at times shares of our common stock, have been trading below net asset value and at near historic lows as a result of concerns over liquidity, leverage restrictions and distribution requirements. When our common stock is trading below its net asset value per share, we will generally not be able to issue additional shares of our common stock at its market price without first obtaining approval for such issuance from our stockholders and our independent directors.

There is a risk that investors in our equity securities may not receive dividends or that our dividends may not grow over time and that investors in our debt securities may not receive all of the interest income to which they are entitled.

              We intend to make distributions on a quarterly basis to our stockholders out of assets legally available for distribution. We cannot assure you that we will achieve investment results that will allow us to make a specified level of cash distributions or year-to-year increases in cash distributions. If we declare a dividend and if more stockholders opt to receive cash distributions rather than participate in our dividend reinvestment plan, we may be forced to sell some of our investments in order to make cash dividend payments.

              In addition, due to the asset coverage test applicable to us as a BDC, we may be limited in our ability to make distributions. Further, if we invest a greater amount of assets in equity securities that do not pay current dividends, it could reduce the amount available for distribution. See "Price Range of Common Stock and Distributions."

              The above referenced distribution requirement may also inhibit our ability to make required interest payments to holders of our debt securities, which may cause a default under the terms of our debt securities. Such a default could materially increase our cost of raising capital, as well as cause us to incur penalties under the terms of our debt securities.

Provisions of the Maryland General Corporation Law and of our charter and bylaws could deter takeover attempts and have an adverse impact on the price of our common stock.

              The Maryland General Corporation Law, our charter and our bylaws contain provisions that may discourage, delay or make more difficult a change in control of Ares Capital or the removal of our directors. We are subject to the Maryland Business Combination Act, subject to any applicable requirements of the Investment Company Act. Our board of directors has adopted a resolution exempting from the Business Combination Act any business combination between us and any other person, subject to prior approval of such business combination by our board, including approval by a majority of our disinterested directors. If the resolution exempting business combinations is repealed or our board does not approve a business combination, the Business Combination Act may discourage third parties from trying to acquire control of us and increase the difficulty of consummating such an offer. Our bylaws exempt from the Maryland Control Share Acquisition Act acquisitions of our stock by any person. If we amend our bylaws to repeal the exemption from the Control Share Acquisition Act, the Control Share Acquisition Act also may make it more difficult for a third party to obtain control of us and increase the difficulty of consummating such an offer.

              We have also adopted measures that may make it difficult for a third party to obtain control of us, including provisions of our charter classifying our board of directors in three classes serving staggered three-year terms, and provisions of our charter authorizing our board of directors to classify or reclassify shares of our stock in one or more classes or series, to cause the issuance of additional shares of our stock, and to amend our charter, without stockholder approval, to increase or decrease the number of shares of stock that we have authority to issue. These provisions, as well as other

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provisions of our charter and bylaws, may delay, defer or prevent a transaction or a change in control that might otherwise be in the best interests of our stockholders.

Investing in our securities may involve an above average degree of risk.

              The investments we make in accordance with our investment objective may result in a higher amount of risk than alternative investment options and volatility or loss of principal. Our investments in portfolio companies may be highly speculative and aggressive, and therefore, an investment in our securities may not be suitable for someone with lower risk tolerance.

The market price of our common stock may fluctuate significantly.

              The capital and credit markets have experienced a period of extreme volatility and disruption that began in 2007. The market price and liquidity of the market for shares of our common stock may be significantly affected by numerous factors, some of which are beyond our control and may not be directly related to our operating performance. These factors include:

•

significant volatility in the market price and trading volume of securities of publicly traded RICs, business development companies or other companies in our sector, which are not necessarily related to the operating performance of these companies;



•

price and volume fluctuations in the overall stock market from time to time;



•

changes in regulatory policies or tax guidelines, particularly with respect to RICs or business development companies;



•

loss of RIC status;



•

changes in our earnings or variations in our operating results;



•

changes in the value of our portfolio of investments;



•

any shortfall in revenue or net income or any increase in losses from levels expected by investors or securities analysts;



•

departure of Ares Capital Management's key personnel;



•

operating performance of companies comparable to us;



•

short-selling pressure with respect to shares of our common stock or BDCs generally;



•

general economic trends and other external factors; and



•

loss of a major funding source.

              In the past, following periods of volatility in the market price of a company's securities, securities class action litigation has often been brought against that company. If our stock price fluctuates significantly, we may be the target of securities litigation in the future. Securities litigation could result in substantial costs and divert management's attention and resources from our business.

The net asset value per share of our common stock may be diluted if we sell shares of our common stock in one or more offerings at prices below the then current net asset value per share of our common stock or securities to subscribe for or convertible into shares of our common stock.

              At our 2009 Annual Stockholders Meeting, our stockholders approved two proposals designed to allow us to access the capital markets in ways that we would otherwise be unable to as a result of restrictions that, absent stockholder approval, apply to BDCs under the Investment Company Act. Specifically, our stockholders have authorized us to sell or otherwise issue (a) shares of our common stock below its then current net asset value per share in one or more offerings subject to certain

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limitations (including, without limitation, that the number of shares issuable does not exceed 25% of our then outstanding common stock) and (b) warrants or securities to subscribe for or convertible into shares of our common stock subject to certain limitations (including, without limitation, that the number of shares issuable does not exceed 25% of our then outstanding common stock and that the exercise or conversion price thereof is not, at the date of issuance, less than the greater of the market value per share and the net asset value per share of our common stock). Any decision to sell shares of our common stock below its then current net asset value per share or securities to subscribe for or convertible into shares of our common stock would be subject to the determination by our board of directors that such issuance is in our and our stockholders' best interests.

              If we were to sell shares of our common stock below its then current net asset value per share, such sales would result in an immediate dilution to the net asset value per share of our common stock. This dilution would occur as a result of the sale of shares at a price below the then current net asset value per share of our common stock and a proportionately greater decrease in the stockholders' interest in our earnings and assets and their voting interest in us than the increase in our assets resulting from such issuance. Because the number of shares of common stock that could be so issued and the timing of any issuance is not currently known, the actual dilutive effect cannot be predicted.

              In addition, if we issue warrants or securities to subscribe for or convertible into shares of our common stock, subject to certain limitations, the exercise or conversion price per share could be less than net asset value per share at the time of exercise or conversion (including through the operation of anti-dilution protections). Because we would incur expenses in connection with any issuance of such securities, such issuance could result in a dilution of the net asset value per share at the time of exercise or conversion. This dilution would include reduction in net asset value per share as a result of the proportionately greater decrease in the stockholders' interest in our earnings and assets and their voting interest than the increase in our assets resulting from such issuance.

              Further, if current stockholders of the Company do not purchase any shares to maintain their percentage interest, regardless of whether such offering is above or below the then current net asset value per share, their voting power will be diluted. For additional information and hypothetical examples of these risks, see "Sales of Common Stock Below Net Asset Value" and the prospectus supplement pursuant to which such sale is made.

              In addition, our common stock will suffer immediate dilution of their voting power if the Allied Acquisition is consummated. See "Risk Factors—Risks Relating to a Consummation of the Allied Acquisition—Consummation of the Allied Acquisition will cause immediate dilution to our stockholders' voting interests in us and may cause immediate dilution to the net asset value per share of our common stock."

Your interest in us may be diluted if you do not fully exercise your subscription rights in any rights offering. In addition, if the subscription price is less than our net asset value per share, then you will experience an immediate dilution of the aggregate net asset value of your shares.

              In the event we issue subscription rights, stockholders who do not fully exercise their subscription rights should expect that they will, at the completion of a rights offering pursuant to this prospectus, own a smaller proportional interest in us than would otherwise be the case if they fully exercised their rights. We cannot state precisely the amount of any such dilution in share ownership because we do not know at this time what proportion of the shares will be purchased as a result of such rights offering.

              In addition, if the subscription price is less than the net asset value per share of our common stock, then our stockholders would experience an immediate dilution of the aggregate net asset value of their shares as a result of the offering. The amount of any decrease in net asset value is not predictable because it is not known at this time what the subscription price and net asset value per share will be on

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the expiration date of a rights offering or what proportion of the shares will be purchased as a result of such rights offering. Such dilution could be substantial. See "Risk Factors—Risks Relating to Offerings Pursuant to this Prospectus—The net asset value per share of our common stock and our stockholders' voting interests in us may be diluted if we sell shares of our common stock in one or more offerings at prices below the then current net asset value per share of our common stock or securities to subscribe for or convertible into shares of our common stock" and "Sales of Common Stock Below Net Asset Value."

Investors in offerings of our common stock will likely incur immediate dilution upon the closing of such offering.

              We generally expect the public offering price of any offering of shares of our common stock to be higher than the book value per share of our outstanding common stock (unless we offer shares pursuant to a rights offering or after obtaining prior approval for such issuance from our stockholders and our independent directors). Accordingly, investors purchasing shares of common stock in offerings pursuant to this prospectus may pay a price per share that exceeds the tangible book value per share after such offering.

Our stockholders will experience dilution in their ownership percentage if they do not participate in our dividend reinvestment plan.

              All dividends declared in cash payable to stockholders that are participants in our dividend reinvestment plan are automatically reinvested in shares of our common stock. As a result, our stockholders that do not participate in our dividend reinvestment plan will experience dilution in their ownership percentage of our common stock over time.

You may receive shares of our common stock as dividends, which could result in adverse tax consequences to you.

              In order to satisfy the annual distribution requirement applicable to RICs, we have the ability to declare a large portion of a dividend in shares of our common stock instead of in cash. As long as a portion of such dividend is paid in cash (which portion can be as low as 10% for our taxable years ending on or before December 31, 2009) and certain requirements are met, the entire distribution would be treated as a dividend for U.S. federal income tax purposes. As a result, a stockholder would be taxed on 100% of the dividend in the same manner as a cash dividend, even though most of the dividend was paid in shares of our common stock.

Sales of substantial amounts of our common stock in the public market may have an adverse effect on the market price of our common stock.

              Sales of substantial amounts of our common stock, or the availability of such common stock for sale, could adversely affect the prevailing market prices for our common stock. If this occurs and continues, it could impair our ability to raise additional capital through the sale of securities should we desire to do so.

The trading market or market value of our publicly issued debt securities may fluctuate.

              Upon issuance, our publicly issued debt securities will not have an established trading market. We cannot assure you that a trading market for our publicly issued debt securities will ever develop or be maintained if developed. In addition to our creditworthiness, many factors may materially adversely affect the trading market for, and market value of, our publicly issued debt securities. These factors include, but are not limited to, the following:

•

the time remaining to the maturity of these debt securities;

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•

the outstanding principal amount of debt securities with terms identical to these debt securities;



•

the ratings assigned by national statistical ratings agencies;



•

the general economic environment;



•

the supply of debt securities trading in the secondary market, if any;



•

the redemption or repayment features, if any, of these debt securities;



•

the level, direction and volatility of market interest rates generally; and



•

market rates of interest higher or lower than rates borne by the debt securities.

              You should also be aware that there may be a limited number of buyers when you decide to sell your debt securities. This too may materially adversely affect the market value of the debt securities or the trading market for the debt securities.

Terms relating to redemption may materially adversely affect your return on any debt securities that we may issue.

              If your debt securities are redeemable at our option, we may choose to redeem your debt securities at times when prevailing interest rates are lower than the interest rate paid on your debt securities. In addition, if your debt securities are subject to mandatory redemption, we may be required to redeem your debt securities also at times when prevailing interest rates are lower than the interest rate paid on your debt securities. In this circumstance, you may not be able to reinvest the redemption proceeds in a comparable security at an effective interest rate as high as your debt securities being redeemed.

Our credit ratings may not reflect all risks of an investment in our debt securities.

              Our credit ratings are an assessment by third parties of our ability to pay our obligations. Consequently, real or anticipated changes in our credit ratings will generally affect the market value of our debt securities. Our credit ratings, however, may not reflect the potential impact of risks related to market conditions generally or other factors discussed above on the market value of or trading market for the publicly issued debt securities.

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FORWARD-LOOKING STATEMENTS

              Some of the statements in this prospectus constitute forward-looking statements, which relate to future events or our future performance or financial condition. The forward-looking statements contained in this prospectus involve a number of risks and uncertainties, including statements concerning:

•

the Allied Acquisition;



•

our, or our portfolio companies', future business, operations, operating results or prospects;



•

the return or impact of current and future investments;



•

the impact of a protracted decline in the liquidity of credit markets on our business;



•

the impact of fluctuations in interest rates on our business;



•

the valuation of our investments in portfolio companies, particularly those having no liquid trading market;



•

our ability to recover unrealized losses;



•

market conditions and our ability to access alternative debt markets and additional debt and equity capital;



•

our contractual arrangements and relationships with third parties;



•

the general economy and its impact on the industries in which we invest;



•

the financial condition of and ability of our current and prospective portfolio companies to achieve their objectives;



•

our expected financings and investments;



•

our ability to successfully integrate any acquisitions;



•

the adequacy of our cash resources and working capital;



•

the timing, form and amount of any dividend distributions;



•

the timing of cash flows, if any, from the operations of our portfolio companies; and



•

the ability of our investment adviser to locate suitable investments for us and to monitor and administer our investments.

              We use words such as "anticipates," "believes," "expects," "intends," "will," "should," "may" and similar expressions to identify forward-looking statements, although not all forward-looking statements include these words. Our actual results and condition could differ materially from those implied or expressed in the forward-looking statements for any reason, including the factors set forth in "Risk Factors" and elsewhere in this prospectus.

              The forward-looking statements included in this prospectus have been based on information available to us on the date of this prospectus, and we assume no obligation to update any such forward-looking statements. Although we undertake no obligation to revise or update any forward-looking statements, whether as a result of new information, future events or otherwise, you are advised to consult any additional disclosures that we may make directly to you or through reports that we have filed or in the future may file with the SEC, including annual reports on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K.

              The forward-looking statements in this prospectus are excluded from the safe harbor protection provided by Section 27A of the Securities Act of 1933 (the "Securities Act") and Section 21E of the Exchange Act.

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UNAUDITED PRO FORMA CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

              The Merger Agreement provides that the holders of Allied Capital common stock will be entitled to receive 0.325 shares of our common stock for each share of Allied Capital common stock held by them immediately prior to the effective time. This is estimated to result in approximately 58.3 million shares of our common stock being issued in connection with the Allied Acquisition (assuming that holders of all "in-the-money" Allied Capital stock options elect to be cashed out). The unaudited pro forma condensed consolidated financial information has been derived from and should be read in conjunction with the historical consolidated financial statements and the related notes of both us and Allied Capital, which are included elsewhere in this document. See "Index to Financial Statements."

              The following unaudited pro forma condensed consolidated financial information and explanatory notes illustrate the effect of the Allied Acquisition on our financial position and results of operations based upon the companies' respective historical financial positions and results of operations under the acquisition method of accounting with us treated as the acquirer.

              In accordance with GAAP, the assets and liabilities of Allied Capital will be recorded by us at their estimated fair values as of the date the Allied Acquisition is completed. The unaudited pro forma condensed consolidated financial information of us and Allied Capital reflects the unaudited pro forma condensed consolidated balance sheet as of September 30, 2009 and the unaudited pro forma condensed consolidated income statements for the nine months ended September 30, 2009 and the year ended December 31, 2008. The unaudited pro forma condensed consolidated balance sheet as of September 30, 2009 assumes the Allied Acquisition took place on that date. The unaudited pro forma condensed consolidated statements of income for the nine months ended September 30, 2009 and the year ended December 31, 2008 assumes the Allied Acquisition took place on January 1, 2008. The unaudited pro forma condensed consolidated balance sheet also reflects the impact of certain transactions that occurred subsequent to September 30, 2009.

              The unaudited pro forma condensed consolidated financial information is presented for illustrative purposes only and does not indicate the results of operations or the combined financial position that would have resulted had the Allied Acquisition and subsequent combination been completed at the beginning of the applicable period presented, nor the impact of expense efficiencies, asset dispositions, share repurchases and other factors. In addition, as explained in more detail in the accompanying notes to the unaudited pro forma condensed consolidated financial information, the allocation of the pro forma purchase price reflected in the unaudited pro forma condensed consolidated financial information involves estimates, is subject to adjustment and may vary significantly from the actual purchase price allocation that will be recorded upon completion of the Allied Acquisition.

              We cannot assure you that the Allied Acquisition will be consummated as scheduled, or at all. See "Pending Allied Acquisition" for a description of the terms of the Allied Acquisition and "Risk Factors—Risks Relating to Our Business—We may fail to consummate the Allied Acquisition" for a description of the risks associated with a failure to consummate the Allied Acquisition.

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Ares Capital Corporation and Subsidiaries
Pro Forma Condensed Consolidated Balance Sheet
As of September 30, 2009
Unaudited
(in thousands, except share and per share data)

See accompanying notes to pro forma condensed consolidated financial statements.

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Ares Capital Corporation and Subsidiaries
Pro Forma Condensed Consolidated Statement of Operations
For the Nine Months Ended September 30, 2009
Unaudited
(in thousands, except share and per share data)

See accompanying notes to pro forma condensed consolidated financial statements.

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Ares Capital Corporation and Subsidiaries
Pro Forma Condensed Consolidated Statement of Operations
For the Year Ended December 31, 2008
Unaudited
(in thousands, except share and per share data)

See accompanying notes to pro forma condensed consolidated financial statements.

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Ares Capital Corporation and Subsidiaries

Pro Forma Schedule of Investments
Unaudited
As of September 30, 2009
(Dollar Amounts in Thousands)

See accompanying notes to pro forma condensed consolidated financial statements.

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See accompanying notes to pro forma condensed consolidated financial statements.

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See accompanying notes to pro forma condensed consolidated financial statements.

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See accompanying notes to pro forma condensed consolidated financial statements.

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See accompanying notes to pro forma condensed consolidated financial statements.

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See accompanying notes to pro forma condensed consolidated financial statements.

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See accompanying notes to pro forma condensed consolidated financial statements.

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See accompanying notes to pro forma condensed consolidated financial statements.

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See accompanying notes to pro forma condensed consolidated financial statements.

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See accompanying notes to pro forma condensed consolidated financial statements.

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See accompanying notes to pro forma condensed consolidated financial statements.

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See accompanying notes to pro forma condensed consolidated financial statements.

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See accompanying notes to pro forma condensed consolidated financial statements.

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See accompanying notes to pro forma condensed consolidated financial statements.

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See accompanying notes to pro forma condensed consolidated financial statements.

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See accompanying notes to pro forma condensed consolidated financial statements.

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See accompanying notes to pro forma condensed consolidated financial statements.

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Ares Capital Corporation and Subsidiaries
Notes to Pro Forma Condensed Consolidated Financial Statements
Unaudited
(In thousands, except share and per share data unless otherwise stated)

1.     BASIS OF PRO FORMA PRESENTATION

              The unaudited pro forma condensed consolidated financial information related to the Allied Acquisition is included as of and for the nine months ended September 30, 2009 and for the year ended December 31, 2008. On October 26, 2009, Ares Capital and Allied Capital entered into the Merger Agreement. For the purposes of the pro forma condensed consolidated financial statements, the purchase price is currently estimated at approximately $709 million, which is based upon a price of $11.69 per share (last closing price as of December 14, 2009) of Ares Capital common stock and an implied value per share of Allied Capital common stock of $3.80. The pro forma adjustments included herein reflect the conversion of Allied Capital common stock into Ares Capital common stock using an exchange ratio of 0.325 of a share of Ares Capital common stock for each of the approximately 179.4 million shares of Allied Capital common stock currently outstanding.

              The Allied Acquisition will be accounted for as an acquisition of Allied Capital by Ares Capital in accordance with the acquisition method of accounting as detailed in ASC 805-10 (previously SFAS No. 141(R)), Business Combinations. The acquisition method of accounting requires an acquiror to recognize the assets acquired, the liabilities assumed and any noncontrolling interest in the acquiree based on their fair values as of the date of acquisition. As described in more detail in ASC 805-10, goodwill, if any, will be recognized as of the acquisition date, for the excess of the consideration transferred over the fair value of identifiable net assets acquired. If the total acquisition date fair value of the identifiable net assets acquired exceeds the fair value of the consideration transferred, the excess will be recognized as a gain. In connection with the Allied Acquisition and subsequent combination, the estimated fair value of the net assets to be acquired is currently anticipated to exceed the purchase price, and based on Ares Capital's preliminary purchase price allocation, a gain of approximately $363 million is currently expected to be recorded by Ares Capital in the period the Allied Acquisition and subsequent combination are completed.

              Under the Investment Company Act rules, the regulations pursuant to Article 6 of Regulation S-X and the American Institute of Certified Public Accountants' Audit and Accounting Guide for Investment Companies, Ares Capital is precluded from consolidating any entity other than another investment company or an operating company that provides substantially all of its services and benefits to Ares Capital. Ares Capital's financial statements include its accounts and the accounts of all its consolidated subsidiaries. All intercompany balances and transactions have been eliminated in consolidation.

              In determining the value of the assets to be acquired, Ares Capital uses ASC 820-10 (previously SFAS No. 157), Fair Value Measurements, which expands the application of fair value accounting. ASC 820-10 defines fair value, establishes a framework for measuring fair value in accordance with generally accepted accounting principles and expands disclosure of fair value measurements. ASC 820-10 determines fair value to be the price that would be received for an investment in a current sale, which assumes an orderly transaction between market participants on the measurement date. ASC 820-10 requires Ares Capital to assume that the portfolio investment is sold in a principal market to market participants, or in the absence of a principal market, the most advantageous market, which may be a hypothetical market. Market participants are defined as buyers and sellers in the principal or most advantageous market that are independent, knowledgeable, and willing and able to transact. In accordance with ASC 820-10, Ares Capital has considered its principal market as the market in which Ares Capital exits its portfolio investments with the greatest volume and level of activity. ASC 820-10 specifies a hierarchy of valuation techniques based on whether the inputs

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to those valuation techniques are observable or unobservable. In accordance with ASC 820-10, these inputs are summarized in the three broad levels listed below:

•

Level 1—Valuations based on quoted prices in active markets for identical assets or liabilities that Ares Capital has the ability to access.



•

Level 2—Valuations based on quoted prices in markets that are not active or for which all significant inputs are observable, either directly or indirectly.



•

Level 3—Valuations based on inputs that are unobservable and significant to the overall fair value measurement.

              In addition to using the above inputs in investment valuations, Ares Capital continues to employ the relevant provisions of its valuation policy, which policy is consistent with ASC 820-10. Consistent with Ares Capital's valuation policy, the source of inputs, including any markets in which Ares Capital's investments are trading (or any markets in which securities with similar attributes are trading), are evaluated in determining fair value. Ares Capital's valuation policy considers the fact that because there is not a readily available market value for most of the investments in Ares Capital's portfolio, the fair value of its investments must typically be determined using unobservable inputs.

              Due to the inherent uncertainty of determining the fair value of investments that do not have a readily available market value, the fair value of Ares Capital's investments may fluctuate from period to period. Additionally, the fair value of Ares Capital's investments may differ significantly from the values that would have been used had a ready market existed for such investments and may differ materially from the values that Ares Capital may ultimately realize. Further, such investments are generally subject to legal and other restrictions on resale or otherwise are less liquid than publicly traded securities. If Ares Capital were required to liquidate a portfolio investment in a forced or liquidation sale, Ares Capital may realize significantly less than the value at which Ares Capital has recorded it.

              The following table presents fair value measurements of investments for the pro forma combined company as of September 30, 2009:

              The following tables present changes in investments that use Level 3 inputs between the actual September 30, 2009 amounts and those presented for the pro forma combined company as of September 30, 2009:

              As of September 30, 2009, the net unrealized loss on the investments that use Level 3 inputs for the pro forma combined company was $1.6 billion.

              In addition, changes in the market environment and other events that may occur over the life of the investments may cause the gains or losses ultimately realized on these investments to be different than would be realized based on the valuations currently assigned.

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              Certain other transactions that affect the purchase price that occurred subsequent to September 30, 2009 have been adjusted for in the unaudited pro forma condensed consolidated balance sheet. These primarily include sales of investments and receivables of $279.5 million for Allied Capital as well as the related paydown of $151.0 million of debt of Allied Capital.

              The unaudited pro forma condensed consolidated financial information includes preliminary estimated purchase price allocation adjustments to record the assets and liabilities of Allied Capital at their respective estimated fair values and represents Ares Capital's management's estimates based on available information. The pro forma adjustments included herein may be revised as additional information becomes available and as additional analyses are performed. The final allocation of the purchase price will be determined after the Allied Acquisition and subsequent combination are completed and after completion of a final analysis to determine the estimated fair values of Allied Capital's assets and liabilities. Accordingly, the final purchase accounting adjustments and integration charges may be materially different from the pro forma adjustments presented in this document. Increases or decreases in the estimated fair values of the net assets, commitments, and other items of Allied Capital as compared to the information shown in this document may change the amount of the purchase price allocated to goodwill or recognized as income in accordance with ASC 805-10.

              Ares Capital has elected to be treated as a RIC under subchapter M of the Code and operates in a manner so as to qualify for the tax treatment applicable to RICs. In order to qualify as a RIC, among other things, Ares Capital is required to timely distribute to its stockholders generally at least 90% of its investment company taxable income, as defined by the Code, for each year. The unaudited pro forma condensed consolidated financial information reflects that Ares Capital has made and intends to continue to make the requisite distributions to its stockholders, which will generally relieve Ares Capital from U.S. federal income taxes.

              The unaudited pro forma condensed consolidated financial information presented in this document is for illustrative purposes only and does not necessarily indicate the results of operations or the combined financial position that would have resulted had the Allied Acquisition and subsequent combination been completed at the beginning of the applicable period presented, nor the impact of expense efficiencies, asset dispositions, share repurchases and other factors. The unaudited pro forma condensed consolidated financial information is not indicative of the results of operations in future periods or the future financial position of the combined company.

2.     PRELIMINARY PURCHASE ACCOUNTING ALLOCATIONS

              The unaudited pro forma condensed consolidated financial information for the Allied Acquisition and subsequent combination includes the unaudited pro forma condensed consolidated balance sheet as of September 30, 2009 assuming the Allied Acquisition and subsequent combination were completed on September 30, 2009. The unaudited pro forma condensed consolidated income statements for the nine months ended September 30, 2009 and for the year ended December 31, 2008 were prepared assuming the Allied Acquisition and subsequent combination were completed on January 1, 2008.

              The unaudited pro forma condensed consolidated financial information reflects the issuance of approximately 58.3 million shares of Ares Capital common stock in connection with the Allied Acquisition.

              The Allied Acquisition and subsequent combination will be accounted for using the purchase method of accounting; accordingly, Ares Capital's cost to acquire Allied Capital will be allocated to the assets and liabilities of Allied Capital at their respective fair values estimated by Ares Capital as of the acquisition date. The amount of the total acquisition date fair value of the identifiable net assets acquired that exceeds the total purchase price, if any, will be recognized as a gain. Accordingly, the pro

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forma purchase price has been allocated to the assets acquired and the liabilities assumed based on Ares Capital's currently estimated fair values as summarized in the following table:

3.     PRELIMINARY PRO FORMA ADJUSTMENTS

              The preliminary pro forma purchase accounting allocation included in the unaudited pro forma condensed consolidated financial information is as follows:

A.

To reflect Allied Capital's September 30, 2009 balance sheet, updated for estimated changes subsequent to September 30, 2009:

B.

To reflect the acquisition of Allied Capital by the issuance of approximately 58.3 million shares of Ares Capital common stock. Below reflects the allocation of the purchase price on the basis of

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Ares Capital's current estimate of the fair value of assets to be acquired and liabilities to be assumed:

              Components of purchase price:

C.

The net assets of the pro forma combined company were decreased for various transaction costs expected to be incurred by Ares Capital related to the merger of approximately $16.3 million as well as the assumed cash payment of $28.0 million of the "in-the-money" Allied Capital stock options.

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D.

The purchase price of certain investments in debt securities being acquired from Allied Capital is estimated by Ares Capital to be less than the expected recovery value of such investments. In accordance with GAAP, subsequent to the effective time, Ares Capital will record the accretion to the expected recovery value in interest income over the remaining term of the investment. Interest income has not been adjusted to reflect the accretion to the expected recovery value for the periods presented. The accretion for the first 12 months after the effective time is estimated to be approximately $30 million. However, there can be no assurance that such accretion will be more or less than such estimate.

E.

The fair value of the outstanding debt assumed from Allied Capital is estimated by Ares Capital to be below the face amount of such debt. In accordance with GAAP, subsequent to the effective time, Ares Capital will record accretion to the face amount in interest expense over the remaining term of the debt. Interest expense has not been adjusted to reflect the accretion to the face value for the periods presented. The accretion for the first 12 months after the effective time is estimated to be approximately $67 million. However, there can be no assurance that such accretion will be more or less than such estimate.

F.

Base management fees were computed based on 1.5% of average total assets other than cash and cash equivalents but including assets purchased with borrowed funds per Ares Capital's investment advisory and management agreement with Ares Capital Management.

G.

Incentive management fees were recomputed based on the formula in Ares Capital's investment advisory and management agreement with Ares Capital Management.

H.

Adjustments to other expenses were made to reflect compensation costs for Allied Capital's employees that would have been covered by the base management fees paid to Ares Capital Management and therefore not incurred by Ares Capital. Additionally, all stock option costs were excluded as such costs would not exist at Ares Capital as there is no stock option plan maintained by Ares Capital. Payments of stock option costs to employees would have been similarly incurred by Ares Capital in the form of incentive management fees paid to Ares Capital Management. Lastly, any actual costs incurred related to the Allied Acquisition and subsequent combination, primarily various transaction costs, were also excluded.

I.

Total shares outstanding as of September 30, 2009 have been adjusted to reflect the following:

Weighted average shares for the nine months ended September 30, 2009 and the year ended December 31, 2008 have been adjusted to reflect the following:

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USE OF PROCEEDS

              Unless otherwise specified in a prospectus supplement, we intend to use the net proceeds from the sale of our securities for general corporate purposes, which includes investing in portfolio companies in accordance with our investment objective and strategies and market conditions. We also expect to use the net proceeds of an offering to repay or repurchase outstanding indebtedness, including indebtedness under (a) the JPM Revolving Credit Facility ($443.9 million outstanding as of December 14, 2009), (b) the CP Funding Facility ($221.6 million outstanding as of December 14, 2009), (c) the CP Funding II Facility (none outstanding as of December 14, 2009) and (d) the CLO Notes under the Debt Securitization (as defined below) ($273.8 million of CLO Notes outstanding as of December 14, 2009). The interest charged on the indebtedness incurred under the JPM Revolving Credit Facility is based on LIBOR (one, two, three or six month) plus 1.00%, generally. As of December 14, 2009, the one, two, three and six month LIBOR were 0.23%, 0.24%, 0.25% and 0.45%, respectively. The JPM Revolving Credit Facility expires on December 28, 2010. The interest charged on the indebtedness incurred under the CP Funding Facility is based on the commercial paper, Eurodollar or adjusted Eurodollar rate, as applicable, plus 3.5% and is payable quarterly. The CP Funding Facility is scheduled to expire on May 7, 2012. The interest charged on the indebtedness incurred under the CP Funding II Facility is based on the LIBOR rate plus 4.0% and is payable quarterly. The CP Funding II Facility is scheduled to expire on July 21, 2012 (subject to two one-year extension options exercisable upon mutual consent). As of December 14, 2009, the blended pricing of the CLO Notes, excluding fees, was approximately three-month LIBOR plus 27 basis points. The CLO Notes mature on December 20, 2019. The supplement to this prospectus relating to an offering may more fully identify the use of the proceeds from such offering.

              We anticipate that substantially all of the net proceeds of an offering of securities pursuant to this prospectus and its related prospectus supplement will be used for the above purposes within three months of any such offering, depending on the availability of appropriate investment opportunities consistent with our investment objective and strategies and market conditions, but no longer than within six months of any such offerings.

              Our primary focus is to generate current income and capital appreciation through investments in first and second lien senior loans and mezzanine debt, and, to a lesser extent, equity securities of eligible portfolio companies. In addition to such investments, we may invest up to 30% of our portfolio in opportunistic investments of non-eligible portfolio companies. As part of this 30%, we may invest in debt of middle-market companies located outside of the United States. Pending such investments, we will invest a portion of the net proceeds primarily in cash, cash equivalents, U.S. government securities and other high-quality short-term investments. These securities may earn yields substantially lower than the income that we anticipate receiving once we are fully invested in accordance with our investment objective. As a result, we may not be able to achieve our investment objective and/or pay any dividends during this period or, if we are able to do so, such dividends may be substantially lower than the dividends that we expect to pay when our portfolio is fully invested. If we do not realize yields in excess of our expenses, we may incur operating losses and the market price of our shares may decline. See "Regulation—Temporary Investments" for additional information about temporary investments we may make while waiting to make longer-term investments in pursuit of our investment objective.

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PRICE RANGE OF COMMON STOCK AND DISTRIBUTIONS

              Our common stock trades on The NASDAQ Global Select Market under the symbol "ARCC." Our common stock has historically traded at prices both above and below its net asset value. It is not possible to predict whether the common stock offered hereby will trade at, above, or below net asset value. See "Risk Factors—Risks Relating to Offerings Pursuant to this Prospectus—Our shares of common stock have recently traded at a discount from net asset value and may do so again in the future, which could limit our ability to raise additional equity capital."

              The following table sets forth, for each fiscal quarter during the last two fiscal years and the current fiscal year, the net asset value per share of our common stock, the range of high and low closing sales prices of our common stock, the closing sales price as a percentage of net asset value and the dividends or distributions declared by us. On December 17, 2009, the last reported closing sales price of our common stock on The NASDAQ Global Select Market was $11.67 per share, which represented a premium of approximately 4.6% to the net asset value per share reported by us as of September 30, 2009.

              We currently intend to distribute quarterly dividends or distributions to our stockholders. Our quarterly dividends or distributions, if any, will be determined by our board of directors.

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              The following table summarizes our dividends declared to date:

              To maintain our RIC status, we must timely distribute generally an amount equal to at least 90% of our investment company taxable income out of the assets legally available for distribution for each year. To avoid certain excise taxes imposed on RICs, we are generally required to distribute during each calendar year an amount at least equal to the sum of (a) 98% of our ordinary income for the calendar year, plus (b) 98% of our capital gains in excess of capital losses for the one-year period ending on October 31 of the calendar year, plus (c) any ordinary income and capital gains for preceding years that were not distributed during such years. If this requirement is not met, we will be required to pay a nondeductible excise tax equal to 4% of the amount by which 98% of the current year's taxable income exceeds the distribution for the year. The taxable income on which an excise tax is paid is generally carried forward and distributed to stockholders in the next tax year. Depending on the level of taxable income earned in a tax year, we may choose to carry forward taxable income in excess of current year distributions into the next tax year and pay a 4% excise tax on such income, as required. Our excise tax benefit for the nine months ended September 30, 2009 was approximately $30,000 and $100,000 for the year ended December 31, 2008. We cannot assure you that we will achieve results that will permit the payment of any cash distributions.

              We maintain an "opt out" dividend reinvestment plan for our common stockholders. As a result, if we declare a cash dividend, then stockholders' cash dividends will be automatically reinvested in additional shares of our common stock unless they specifically "opt out" of the dividend reinvestment plan so as to receive cash dividends. See "Dividend Reinvestment Plan."

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RATIOS OF EARNINGS TO FIXED CHARGES

              For the nine months ended September 30, 2009, the years ended December 31, 2008, 2007, 2006 and 2005, and the period June 23, 2004 (inception) through December 31, 2004, the ratios of earnings to fixed charges of the Company, computed as set forth below, were as follows:

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MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
AND RESULTS OF OPERATIONS

              The information contained in this section should be read in conjunction with the "Selected Condensed Consolidated Financial Data of Ares Capital," the "Unaudited Selected Pro Forma Condensed Consolidated Financial Data," the "Unaudited Pro Forma Condensed Consolidated Financial Statements" and our and Allied Capital's financial statements and notes thereto appearing elsewhere in this prospectus or the accompanying prospectus supplement.

              We cannot assure you that the Allied Acquisition will be consummated as scheduled, or at all. See "Pending Allied Acquisition" for a description of the terms of the Allied Acquisition, "Risk Factors—Risks Relating to Our Business—We may fail to consummate the Allied Acquisition" for a description of the risks associated with a failure to consummate the Allied Acquisition and "Risk Factors—Risks Relating to a Consummation of the Allied Acquisition" for a description of the risks that the combined company may face if the Allied Acquisition is consummated.

OVERVIEW

              We are a specialty finance company that is a closed-end, non-diversified management investment company incorporated in Maryland. We have elected to be regulated as a BDC under the Investment Company Act. We were founded on April 16, 2004 and were initially funded on June 23, 2004 and on October 8, 2004 completed our initial public offering.

              Our investment objective is to generate both current income and capital appreciation through debt and equity investments. We invest primarily in first and second lien senior loans and mezzanine debt, which in some cases includes an equity component like warrants. To a lesser extent we make equity investments.

              We are externally managed by Ares Capital Management, an affiliate of Ares Management, a global alternative asset manager and an SEC registered investment adviser, pursuant to the investment advisory and management agreement. Ares Operations, an affiliate of Ares Management, provides the administrative services necessary for us to operate.

              As a BDC, we are required to comply with certain regulatory requirements. For instance, we generally have to invest at least 70% of our total assets in "qualifying assets," including securities and indebtedness of private U.S. companies and certain public U.S. companies, cash, cash equivalents, U.S. government securities and high-quality debt investments that mature in one year or less.

              The Company has elected to be treated as a RIC under Subchapter M of the Code and operates in a manner so as to qualify for the tax treatment applicable to RICs. To qualify as a RIC, we must, among other things, meet certain source-of-income and asset diversification requirements and timely distribute to our stockholders generally at least 90% of our "investment company taxable income," as defined by the Code, for each year. Pursuant to this election, we generally will not have to pay corporate level taxes on any income that we distribute to our stockholders provided that we satisfy those requirements.

CRITICAL ACCOUNTING POLICIES

Basis of Presentation

              The accompanying consolidated financial statements have been prepared on the accrual basis of accounting in conformity with accounting principles generally accepted in the United States, and include the accounts of the Company and its wholly owned subsidiaries. The consolidated financial statements reflect all adjustments and reclassifications which, in the opinion of management, are

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necessary for the fair presentation of the results of the operations and financial condition as of and for the periods presented. All significant intercompany balances and transactions have been eliminated.

Cash and Cash Equivalents

              Cash and cash equivalents include short-term, liquid investments in a money market fund. Cash and cash equivalents are carried at cost which approximates fair value.

Concentration of Credit Risk

              The Company places its cash and cash equivalents with financial institutions and, at times, cash held in money market accounts may exceed the Federal Deposit Insurance Corporation insured limit.

Investments

              Investment transactions are recorded on the trade date. Realized gains or losses are computed using the specific identification method. Investments for which market quotations are readily available are typically valued at such market quotations. In order to validate market quotations, we look at a number of factors to determine if the quotations are representative of fair value, including the source and nature of the quotations. Debt and equity securities that are not publicly traded or whose market prices are not readily available (i.e., substantially all of our investments) are valued at fair value as determined in good faith by our board of directors, based on the input of our management and audit committee and independent valuation firms that have been engaged at the direction of the board to assist in the valuation of each portfolio investment without a readily available market quotation at least once during a trailing 12-month period and under a valuation policy and consistently applied valuation process. The valuation process is conducted at the end of each fiscal quarter, with approximately 50% (based on value) of our valuations of portfolio companies without readily available market quotations subject to review by an independent valuation firm each quarter.

              As part of the valuation process, we may take into account the following types of factors, if relevant, in determining the fair value of our investments: the enterprise value of a portfolio company (an estimate of the total fair value of the portfolio company's debt and equity), the nature and realizable value of any collateral, the portfolio company's ability to make payments and its earnings and discounted cash flow, the markets in which the portfolio company does business, a comparison of the portfolio company's securities to publicly traded securities, changes in the interest rate environment and the credit markets generally that may affect the price at which similar investments may be made in the future and other relevant factors. When an external event such as a purchase transaction, public offering or subsequent equity sale occurs, we use the pricing indicated by the external event to corroborate our valuation.

              Because there is not a readily available market value for most of the investments in our portfolio, we value substantially all of our portfolio investments at fair value as determined in good faith by our board of directors, based on the input of our management and audit committee and independent valuation firms under a valuation policy and a consistently applied valuation process. Due to the inherent uncertainty of determining the fair value of investments that do not have a readily available market value, the fair value of our investments may fluctuate from period to period. Additionally, the fair value of our investments may differ significantly from the values that would have been used had a ready market existed for such investments and may differ materially from the values that we may ultimately realize. Further, such investments are generally subject to legal and other restrictions on resale or otherwise are less liquid than publicly traded securities. If we were required to liquidate a portfolio investment in a forced or liquidation sale, we may realize significantly less than the value at which we have recorded it.

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              In addition, changes in the market environment and other events that may occur over the life of the investments may cause the gains or losses ultimately realized on these investments to be different than would be realized based on the valuations currently assigned. See "Risk Factors—Risks Relating to Our Investments—Price declines and illiquidity in the corporate debt markets have adversely affected, and may in the future adversely affect, the fair value of our portfolio investments, reducing our net asset value through increased net unrealized depreciation."

              With respect to investments for which market quotations are not readily available, our board of directors undertakes a multi-step valuation process each quarter, as described below:

•

Our quarterly valuation process begins with each portfolio company or investment being initially valued by the investment professionals responsible for the portfolio investment in conjunction with our portfolio management team.



•

Preliminary valuation conclusions are then documented and discussed by our management.



•

The audit committee of our board of directors reviews these preliminary valuations, as well as the input of independent valuation firms with respect to the valuations of approximately 50% (based on value) of our portfolio companies without readily available market quotations.



•

The board of directors discusses valuations and determines the fair value of each investment in our portfolio without a readily available market quotation in good faith based on the input of our management and audit committee and independent valuation firms.

              Effective January 1, 2008, the Company adopted ASC 820-10 (previously SFAS No. 157, Fair Value Measurements ("SFAS 157")), which expands the application of fair value accounting for investments (see Note 8 to the consolidated financial statements for the period ended September 30, 2009).

Interest Income Recognition

              Interest income, adjusted for amortization of premium and accretion of discount, is recorded on an accrual basis. Discounts and premiums on securities purchased are accreted/amortized over the life of the respective security using the effective yield method. The amortized cost of investments represents the original cost adjusted for the accretion of discounts and amortization of premiums.

              Loans are generally placed on non-accrual status when principal or interest payments are past due 30 days or more or when there is reasonable doubt that principal or interest will be collected. Accrued interest is generally reversed when a loan is placed on non-accrual status. Interest payments received on non-accrual loans may be recognized as income or applied to principal depending upon management's judgment regarding collectability. Non-accrual loans are restored to accrual status when past due principal and interest is paid and, in management's judgment, are likely to remain current. The Company may make exceptions to this if the loan has sufficient collateral value and is in the process of collection.

Payment-in-Kind Interest

              The Company has loans in its portfolio that contain payment-in-kind ("PIK") provisions. The PIK interest, computed at the contractual rate specified in each loan agreement, is added to the principal balance of the loan and recorded as interest income. To maintain the Company's status as a RIC, this non-cash source of income must be paid out to stockholders in the form of dividends even though the Company has not yet collected the cash.

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Capital Structuring Service Fees and Other Income

              The Company's investment adviser seeks to provide assistance to our portfolio companies in connection with the Company's investments and in return the Company may receive fees for capital structuring services. These fees are generally only available to the Company as a result of the Company's underlying investments, are normally paid at the closing of the investments, are generally non-recurring and are recognized as revenue when earned upon closing of the investment. The services that the Company's investment adviser provides vary by investment, but generally consist of reviewing existing credit facilities, arranging bank financing, arranging equity financing, structuring financing from multiple lenders, structuring financing from multiple equity investors, restructuring existing loans, raising equity and debt capital, and providing general financial advice, which concludes upon closing of the investment. Any services of the above nature subsequent to the closing would generally generate a separate fee payable to the Company. In certain instances where the Company is invited to participate as a co-lender in a transaction and does not provide significant services in connection with the investment, a portion of loan fees paid to the Company in such situations will be deferred and amortized over the estimated life of the loan. The Company's investment adviser may also take a seat on the board of directors of a portfolio company, or observe the meetings of the board of directors without taking a formal seat.

              Other income includes fees for asset management, consulting, loan guarantees, commitments, and other services rendered by the Company to portfolio companies. Such fees are recognized as income when earned or the services are rendered.

Foreign Currency Translation

              The Company's books and records are maintained in U.S. dollars. Any foreign currency amounts are translated into U.S. dollars on the following basis:

(1)

Market value of investment securities, other assets and liabilities—at the exchange rates prevailing at the end of the period.



(2)

Purchases and sales of investment securities, income and expenses—at the rates of exchange prevailing on the respective dates of such transactions, income or expenses.

              Results of operations based on changes in foreign exchange rates are separately disclosed in the statement of operations. Foreign security and currency translations may involve certain considerations and risks not typically associated with investing in U.S. companies and U.S. government securities. These risks include, but are not limited to, currency fluctuation and revaluations and future adverse political, social and economic developments, which could cause investments in foreign markets to be less liquid and prices more volatile than those of comparable U.S. companies or U.S. government securities.

Accounting for Derivative Instruments

              We do not utilize hedge accounting and marks its derivatives to market through operations.

Offering Expenses

              Our offering costs are charged against the proceeds from equity offerings when received.

Debt Issuance Costs

              Debt issuance costs are being amortized over the life of the related credit facility using the straight line method, which closely approximates the effective yield method.

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U.S. Federal Income Taxes

              We have elected to be treated as a RIC under Subchapter M of the Code and operate in a manner so as to qualify for the tax treatment applicable to RICs. In order to qualify as a RIC, among other things, we are required to timely distribute to our stockholders generally at least 90% of "investment company taxable income," as defined by the Code, for each year. We have made and intend to continue to make the requisite distributions to our stockholders, which will generally relieve us from U.S. federal income tax liability.

              Depending on the level of taxable income earned in a tax year, we may choose to carry forward taxable income in excess of current year dividend distributions into the next tax year and pay a 4% U.S. federal excise tax on such income, as required. To the extent that we determine that our estimated current year annual taxable income will be in excess of estimated current year dividend distributions, we accrue this excise tax, if any, on estimated excess taxable income as taxable income is earned.

              Certain of our wholly owned subsidiaries are subject to U.S. federal and state income taxes and we and our subsidiaries may be subject to foreign taxes.

Dividends

              Dividends and distributions to common stockholders are recorded on the record date. The amount to be paid out as a dividend is determined by the board of directors each quarter and is generally based upon the current and expected future earnings estimated by management. Net realized capital gains, if any, are generally distributed at least annually, although we may decide to retain such capital gains for investment.

              We have adopted a dividend reinvestment plan that provides for reinvestment of any distributions we declare in cash on behalf of our stockholders, unless a stockholder elects to receive cash. As a result, if our board of directors authorizes, and we declare, a cash dividend, then our stockholders who have not "opted out" of our dividend reinvestment plan will have their cash dividends automatically reinvested in additional shares of our common stock, rather than receiving the cash dividend. While we generally use primarily newly issued shares to implement the dividend reinvestment plan (especially if our shares are trading at a premium to net asset value), we may purchase shares in the open market in connection with our obligations under the dividend reinvestment plan. In particular, if our shares are trading at a significant enough discount to net asset value and we are otherwise permitted under applicable law to purchase such shares, we intend to purchase shares in the open market in connection with our obligations under our dividend reinvestment plan.

Use of Estimates in the Preparation of Financial Statements

              The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of actual and contingent assets and liabilities at the date of the financial statements and the reported amounts of income or loss and expenses during the reporting period. Actual results could differ from those estimates. Significant estimates include the valuation of investments.

New Accounting Pronouncements

              In June 2009, the Financial Accounting Standards Board ("FASB") issued ASC 860 (previously SFAS No. 166, Accounting for Transfer of Financial Assets, which amends the guidance in SFAS No. 140, Accounting for Transfers and Servicing of Financial Assets and Extinguishments of Liabilities). ASC 860 eliminates the qualifying special-purpose entities ("QSPEs") concept, creates more stringent conditions for reporting a transfer of a portion of a financial asset as a sale, clarifies the derecognition criteria,

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revises how retained interests are initially measured, and removes the guaranteed mortgage securitization recharacterization provisions. ASC 860 requires additional year-end and interim disclosures for public and nonpublic companies that are similar to the disclosures required by FSP FAS 140-4 and FIN 46(R)-8. ASC 860 is effective as of the beginning of a company's first fiscal year that begins after November 15, 2009 (January 1, 2010 for calendar year-end companies), and for subsequent interim and annual reporting periods. ASC 860's disclosure requirements must be applied to transfers that occurred before and after its effective date. Early adoption is prohibited. We are currently evaluating the effect that the provisions of ASC 860 may have on our financial condition and results of operations.

              In June 2009, FASB issued ASC 810 (previously SFAS No. 167, Amendments to FASB Interpretation No. 46(R), which amends the guidance in FASB Interpretation No. ("FIN") 46(R), Consolidation of Variable Interest Entities). ASC 810 requires reporting entities to evaluate former QSPEs for consolidation, changes the approach to determining the primary beneficiary of a variable interest entity (a "VIE") from a quantitative assessment to a qualitative assessment designed to identify a controlling financial interest, and increases the frequency of required reassessments to determine whether a company is the primary beneficiary of a VIE. ASC 810 also clarifies, but does not significantly change, the characteristics that identify a VIE. ASC 810 requires additional year-end and interim disclosures for public and non-public companies that are similar to the disclosures required by FSP FAS 140-4 and FIN 46(R)-8, Disclosures by Public Entities (Enterprises) about Transfers of Financial Assets and Interests in Variable Interest Entities. ASC 810 is effective as of the beginning of a company's first fiscal year that begins after November 15, 2009 (January 1, 2010 for calendar year-end companies), and for subsequent interim and annual reporting periods. All QSPEs and entities currently subject to FIN 46(R) will need to be reevaluated under the amended consolidation requirements as of the beginning of the first annual reporting period that begins after November 15, 2009. Early adoption is prohibited. We are currently evaluating the effect that the provisions of ASC 810 may have on our financial condition and results of operations.

              In June 2009, FASB issued ASC 2005, (previously SFAS NO. 168, The FASB Accounting Standards Codification and the Hierarchy of Generally Accepted Accounting Principles ("GAAP")—a replacement of FASB Statement No. 162 ("Codification")). This Codification will become the source of authoritative U.S. GAAP recognized by FASB to be applied by nongovernmental entities. Once the Codification is in effect, all of its content will carry the same level of authority, effectively superseding SFAS No. 162, The Hierarchy of Generally Accepted Accounting Principles. In other words, the GAAP hierarchy will be modified to include only two levels of GAAP: authoritative and nonauthoritative. The Codification is not intended to change GAAP, but it will change the way GAAP is organized and presented. The Codification is effective for financial statements issued for interim and annual periods ending after September 15, 2009. In order to ease the transition to the Codification, the Company has provided the Codification cross-reference alongside the references to the standards issued and adopted prior to the adoption of the Codification.

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PORTFOLIO AND INVESTMENT ACTIVITY
(in millions, except number of new investment commitments, terms and percentages)

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              The investment adviser employs an investment rating system to categorize our investments. In addition to various risk management and monitoring tools, the investment adviser grades the credit status of all investments on a scale of 1 to 4 no less frequently than quarterly. This system is intended to reflect the performance of the portfolio company's business, the collateral coverage of the investment and other relevant factors. Under this system, investments with a grade of 4 involve the least amount of risk in our portfolio. This portfolio company is performing above expectations and the trends and risk factors are generally favorable, including a potential exit. Investments graded 3 involve a level of risk that is similar to the risk at the time of origination. This portfolio company is performing as expected and the risk factors are neutral to favorable. All new investments are initially assessed a grade of 3. Investments graded 2 involve a portfolio company performing below expectations and indicates that the investment's risk has increased materially since origination. This portfolio company may be out of compliance with debt covenants, however, payments are generally not more than 120 days past due. For investments graded 2, our investment adviser increases procedures to monitor the portfolio company and will write down the fair value of the investment if it is deemed to be impaired. An investment grade of 1 indicates that the portfolio company is performing materially below expectations and that the investment risk has substantially increased since origination. Most or all of the debt covenants are out of compliance and payments are substantially delinquent. Investments graded 1 are not anticipated to be repaid in full. Our investment adviser employs half-point increments to reflect underlying trends in portfolio company operating or financial performance, as well as the general outlook. As of September 30, 2009, the weighted average investment grade of the investments in our portfolio was 3.0 with 5.3% of total investments at amortized cost (or 1.7% at fair value) on non-accrual status. The weighted average investment grade of the investments in our portfolio as of December 31, 2008 was 2.9. The distribution of the grades of our portfolio companies as of September 30, 2009 and December 31, 2008 is as follows (dollar amounts in thousands):

              The weighted average yields of the following portions of our portfolio as of September 30, 2009 and December 31, 2008 were as follows:

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RESULTS OF OPERATIONS

For the three and nine months ended September 30, 2009 and 2008

              Operating results for the three and nine ended September 30, 2009 and 2008 are as follows (in thousands):

              Net income can vary substantially from period to period for various factors, including the recognition of realized gains and losses and unrealized appreciation and depreciation. As a result, quarterly comparisons of net income may not be meaningful.

Investment Income

              For the three months ended September 30, 2009, total investment income decreased $1.2 million, or 2%, over the three months ended September 30, 2008. For the three months ended September 30, 2009, total investment income consisted of $56.9 million in interest income from investments, $2.2 million in dividend income and $1.6 million in other income. There were no capital structuring service fees for the three months ended September 30, 2009 compared to $3.3 million for the same period in 2008. The decrease in capital structuring service fees was primarily due to the significant decrease in new investment commitments for the three months ended September 30, 2009 as compared to the three months ended September 30, 2008. Dividend income increased $1.4 million or 186% to $2.2 million for the three months ended September 30, 2009 from $0.8 million for the comparable period in 2008 primarily due to the dividend from IHAM as a result of treating IHAM as a portfolio company (see Note 10 to the consolidated financial statements for the nine months ended September 30, 2009). Additionally, other income increased $0.9 million or 120% to $1.6 million for the three months ended September 30, 2009 from $0.7 million for the comparable period in 2008 primarily due to miscellaneous amendment fees received during the period.

              For the nine months ended September 30, 2009, total investment income decreased $1.7 million, or 1%, over the nine months ended September 30, 2008. For the nine months ended September 30, 2009, total investment income consisted of $163.2 million in interest income from investments, $1.8 million in capital structuring service fees, $3.4 million in dividend income, $4.4 million in other income and $2.7 million in management fees. Capital structuring service fees decreased $16.7 million, or 90%, to $1.8 million for the nine months ended September 30, 2009 from $18.6 million for the comparable period in 2008. The decrease in capital structuring service fees was primarily due to the decrease in new investment commitments for the nine months ended September 30, 2009 as compared to the nine months ended September 30, 2008. Interest income from investments increased $11.3 million, or 7%, to $163.2 million for the nine months ended September 30,

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2009 from $151.9 million for the comparable period in 2008. The increase in interest income from investments was primarily due to the increase in the size of the portfolio. The average investments, at amortized cost, for the period increased from $2.2 billion for the nine months ended September 30, 2008 to $2.3 billion for the comparable period in 2009. Other income increased $2.0 million or 82% to $4.4 million for the nine months ended September 30, 2009 from $2.4 million for the comparable period in 2008, primarily due to miscellaneous amendment fees received during the period. Dividend income increased $1.5 million or 77% to $3.4 million for the nine months ended September 30, 2009 from $1.9 million for the comparable period in 2008, primarily due to the dividend from IHAM.

Operating Expenses

              For the three months ended September 30, 2009, total expenses decreased $1.8 million, or 6%, over the three months ended September 30, 2008. Interest expense and credit facility fees decreased $3.8 million, or 40%, to $5.7 million for the three months ended September 30, 2009 from $9.5 million for the comparable period in 2008, primarily due to the lower average cost of debt. The average cost of debt for the three months ended September 30, 2009 was 2.16% compared to the average cost of debt of 3.74% for the comparable period in 2008 due to the significant decrease in LIBOR over the period. There were $831 million in average outstanding borrowings during the three months ended September 30, 2009 compared to average outstanding borrowings of $883 million in the comparable period in 2008. For the three months ended September 30, 2009, the Company incurred $2.0 million in professional fees related to the Allied Acquisition that were not incurred in the comparable period in 2008.

              For the nine months ended September 30, 2009, total expenses decreased $2.8 million, or 3%, over the nine months ended September 30, 2008. Interest expense and credit facility fees decreased $8.0 million, or 30%, to $18.6 million for the nine months ended September 30, 2009 from $26.6 million for the comparable period in 2008, primarily due to the lower average cost of debt. The average cost of debt for the nine months ended September 30, 2009 was 2.21% compared to the average cost of debt of 3.71% for the comparable period in 2008 due to the significant decrease in LIBOR over the period offset by a higher spread for the CP Funding Facility. There were $865 million in average outstanding borrowings during the nine months ended September 30, 2009 compared to average outstanding borrowings of $794 million in the comparable period in 2008. The decrease in total expenses was partially offset by the increase in administrative expense, which increased $1.2 million, or 71%, to $2.9 million for the nine months ended September 30, 2009 from $1.7 million for the comparable period in 2008. This increase was primarily due to the expenses incurred by IHAM pursuant to a separate services agreement with Ares Capital Management. There was no such agreement in place in the comparable period in 2008. Additionally, professional fees increased $1.4 million, or 32%, to $5.7 million for the nine months ended September 30, 2009 from $4.4 million for the comparable period in 2008. This increase was primarily due to a rise in legal and valuation costs. For the three months ended September 30, 2009, the Company incurred $2.0 million in professional fees related to the Allied Acquisition that were not incurred in the comparable period in 2008.

Income Tax Expense, Including Excise Tax

              We have elected to be treated as a RIC under Subchapter M of the Code and operate in a manner so as to qualify for the U.S. federal income tax treatment applicable to RICs. Among other things, we have, in order to maintain our RIC status, made and intend to continue to make the requisite distributions to our stockholders, which will generally relieve us from U.S. federal income tax liability.

              Depending on the level of taxable income earned in a tax year, we may choose to carry forward taxable income in excess of current year dividend distributions into the next tax year and pay a

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4% U.S. federal excise tax on such income, as required. To the extent that we determine that our estimated current year annual taxable income will be in excess of estimated current year dividend distributions, we accrue this excise tax, if any, on estimated excess taxable income as taxable income is earned. For the three months ended September 30, 2009, we recorded no amounts for U.S. federal excise tax. For the nine months ended September 30, 2009, we recognized $0.1 million of benefits for U.S. federal excise tax. For the three months ended September 30, 2008, we recorded a $0.1 million provision for U.S. federal excise tax. For the nine months ended September 30, 2008, we recorded a benefit of $0.4 million for U.S. federal excise tax.

              Certain of our wholly owned subsidiaries are subject to U.S. federal and state income taxes and we and our subsidiaries may be subject to foreign taxes. For the three and nine months ended September 30, 2009, we recorded tax provisions of approximately $0.5 million and $0.6 million for these subsidiaries, respectively. For the three and nine months ended September 30, 2008, we recorded tax provisions of approximately $0.1 million for these subsidiaries.

Net Unrealized Gains/Losses

              For the three months ended September 30, 2009, the Company had net unrealized gains of $32.0 million, which was primarily comprised of $17.6 million in unrealized depreciation, $45.7 million in unrealized appreciation and $3.9 million related to the reversal of prior period net unrealized depreciation. The most significant changes in net unrealized appreciation and depreciation during the three months ended September 30, 2009 were as follows (in millions):

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