UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

FORM N-Q

 

QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED
MANAGEMENT INVESTMENT COMPANY

 

 

Investment Company Act file number: 811-10543

 

Name of Fund: BlackRock Core Bond Trust (BHK)

 

Fund Address: 100 Bellevue Parkway, Wilmington, DE 19809

 

Name and address of agent for service: John M. Perlowski, Chief Executive Officer, BlackRock Core Bond Trust,
55 East 52nd Street, New York, NY 10055

 

Registrant’s telephone number, including area code: (800) 882-0052, Option 4

 

Date of fiscal year end: 08/31/2015

 

Date of reporting period: 05/31/2015

 

Item 1 –Schedule of Investments
 
 
Schedule of Investments May 31, 2015 (Unaudited) BlackRock Core Bond Trust (BHK)
  (Percentages shown are based on Net Assets)
Asset-Backed Securities Par
(000)
  Value  
 
Asset-Backed Securities — 14.7%  
AmeriCredit Automobile Receivables Trust, Series 2011-5, Class C, 3.44%, 10/08/17 USD 658 $ 663,331  
AMMC CLO IX, Ltd., Series 2011-9A, Class D, 4.78%, 1/15/22 (a)(b)   2,000   2,000,027  
Apidos CDO, Series 2012-9AR, Class DR, 4.18%, 7/15/23 (a)(b)   1,400   1,400,000  
Apidos CDO XI, Series 2012-11A, Class D, 4.52%, 1/17/23 (a)(b)   1,200   1,200,095  
Apidos CLO XIX, Series 2014-19A, Class D, 4.02%, 10/17/26 (a)(b)   1,000   977,600  
Ares CLO Ltd., Series 2014-32A, Class C, 4.47%, 11/15/25 (a)(b)   1,250   1,251,562  
Ares XXIII CLO, Ltd., Series 2012-1AR (a)(b):          
  Class CR, 3.48%, 4/19/23   4,000   4,000,928  
  Class DR, 4.43%, 4/19/23   3,000   3,000,073  
Atrium CDO Corp., Series 9A, Class D, 3.79%, 2/28/24 (a)(b)   1,500   1,483,319  
Babson CLO Ltd. (a):          
  Series 2012-1X, Class B, 2.78%, 4/15/22   1,000   990,345  
  Series 2014-3A, Class C1, 3.28%, 1/15/26 (b)   2,000   2,002,000  
  Series 2014-3A, Class D1, 3.78%, 1/15/26 (b)   1,500   1,432,500  
Battalion CLO VII Ltd., Series 2014-7A, Class C, 4.17%, 10/17/26 (a)(b)   2,000   1,984,696  
Benefit Street Partners CLO III Ltd., Series 2013-IIIA, Class C, 3.53%, 1/20/26 (a)(b)   1,000   958,298  
Benefit Street Partners CLO V Ltd., Series 2014-VA, Class C, 3.38%, 10/20/26 (a)(b)   1,500   1,479,375  
Bowman Park CLO Ltd., Series 2014-1A, Class D2, 4.21%, 11/23/25 (a)(b)   3,000   3,002,868  
Brookside Mill CLO Ltd., Series 2013-1A, Class C1, 2.97%, 4/17/25 (a)(b)   1,000   978,115  
CarMax Auto Owner Trust, Series 2012-1:          
  Class B, 1.76%, 8/15/17   420   423,049  
  Class C, 2.20%, 10/16/17   250   252,595  
  Class D, 3.09%, 8/15/18   315   319,620  
CenterPoint Energy Transition Bond Co. LLC, Series 2012-1, Class A3, 3.03%, 10/15/25   2,210   2,300,203  
CIFC Funding 2014-IV Ltd., Series 2014-4A, Class D, 3.67%, 10/17/26 (a)(b)   2,000   1,923,097  
                   
Asset-Backed Securities Par
(000)
  Value  
 
Asset-Backed Securities (continued)  
CIFC Funding 2014-V, Ltd., Series 2014-5A (a)(b):          
  Class C, 3.59%, 1/17/27 USD  555 $ 555,202  
  Class D2, 4.74%, 1/17/27   555   555,478  
CIFC Funding 2015-1, Ltd., Series 2015-1A, Class C, 3.27%, 1/22/27 (a)(b)   1,000   996,089  
CIFC Funding Ltd. (a)(b):          
  Series 2012-1AR, Class B1R, 4.43%, 8/14/24   1,500   1,500,392  
  Series 2013-IA, Class B, 3.09%, 4/16/25   1,000   995,137  
Countrywide Asset-Backed Certificates, Series 2006-13, Class 3AV2, 0.33%, 1/25/37 (a)   739   699,526  
DCP Rights LLC, Series 2014-1A, Class A, 5.46%, 10/25/44 (b)   4,005   4,071,295  
Dryden 34 Senior Loan Fund, Series 2014-34A, Class C, 3.08%, 10/15/26 (a)(b)   2,000   1,999,953  
Ford Credit Floorplan Master Owner Trust, Series 2012-2:          
  Class B, 2.32%, 1/15/19   490   497,512  
  Class C, 2.86%, 1/15/19   210   214,874  
  Class D, 3.50%, 1/15/19   400   413,251  
Galaxy CLO Ltd., Series 2014-18A, Class C1, 3.28%, 10/15/26 (a)(b)   1,625   1,628,266  
Galaxy XV CLO Ltd., Series 2013-15A, Class C, 2.88%, 4/15/25 (a)(b)   1,000   989,245  
GoldenTree Loan Opportunities IX Ltd., Series 2014-9A, Class D, 3.78%, 10/29/26 (a)(b)   1,000   984,500  
Highbridge Loan Management 4-2015, Ltd., Series 5A-2015, Class C1, 3.48%, 1/29/26 (a)(b)   4,000   3,965,000  
Limerock CLO III LLC, Series 2014-3A, Class C, 3.83%, 10/20/26 (a)(b)   4,500   4,443,750  
Madison Park Funding IX Ltd., Series 2012-9AR, Class DR, 4.13%, 8/15/22 (a)(b)   1,200   1,200,000  
Madison Park Funding XV, Ltd., Series 2014-15A, Class B1, 3.46%, 1/27/26 (a)(b)   1,800   1,812,763  
Nelnet Student Loan Trust (a):          
  Series 2006-1, Class A5, 0.39%, 8/23/27   1,050   1,042,062  
  Series 2008-3, Class A4, 1.93%, 11/25/24   1,235   1,276,883  
Neuberger Berman CLO XVIII Ltd., Series 2014-18A, Class C, 4.03%, 11/14/25 (a)(b)   2,250   2,216,428  
                   


BLACKROCK CORE BOND TRUSTMAY 31, 20151
 
Schedule of Investments (continued) BlackRock Core Bond Trust (BHK)
  (Percentages shown are based on Net Assets)
Asset-Backed Securities Par
(000)
  Value  
 
Asset-Backed Securities (continued)  
Oaktree EIF II Series A1, Ltd., Series 2015-B1A, Class C, 3.46%, 2/15/26 (a)(b) USD  1,000 $ 994,600  
Oaktree EIF II Series A2, Ltd., Series 2014-A2, Class C, 3.47%, 11/15/25 (a)(b)   2,250   2,250,089  
Octagon Investment Partners XX Ltd., Series 2014-1A (a)(b):          
  Class C, 3.08%, 8/12/26   750   743,163  
  Class D, 3.93%, 8/12/26   1,000   978,293  
Octagon Investment Partners XXI Ltd., Series 2014-1A, Class C, 3.93%, 11/14/26 (a)(b)   2,000   1,955,143  
Octagon Investment Partners XXII Ltd., Series 2014-1A, Class C1, 3.53%, 11/22/25 (a)(b)   2,000   2,002,487  
OneMain Financial Issuance Trust 2015-1, Series 2015-1A, Class D, 6.63%, 3/18/26 (b)   5,575   5,723,239  
OneMain Financial Issuance Trust 2015-2, Series 2015-2A (b):          
  Class C, 4.32%, 7/18/25   5,000   4,999,085  
  Class D, 5.64%, 7/18/25   2,500   2,499,740  
OZLM Funding III, Ltd., Series 2013-3A (a)(b):          
  Class B, 3.38%, 1/22/25   1,500   1,500,163  
  Class C, 4.18%, 1/22/25   500   501,351  
OZLM VII Ltd., Series 2014-7A, Class C, 3.87%, 7/17/26 (a)(b)   470   457,935  
OZLM VIII, Ltd., Series 2014-8A, Class C, 3.77%, 10/17/26 (a)(b)   1,750   1,705,145  
Regatta V Funding Ltd., Series 2014-1A, Class C, 3.73%, 10/25/26 (a)(b)   2,000   1,930,003  
Santander Drive Auto Receivables Trust:          
  Series 2011-1, Class D, 4.01%, 2/15/17   1,466   1,473,352  
  Series 2012-1, Class C, 3.78%, 11/15/17   312   313,919  
Silver Spring CLO Ltd., Series 2014-1A, Class D, 3.72%, 10/15/26 (a)(b)   2,250   2,088,342  
SLM Private Credit Student Loan Trust, Series 2004-B, Class A2, 0.47%, 6/15/21 (a)   160   159,064  
SLM Private Education Loan Trust, Series 2012-A, Class A1, 1.59%, 8/15/25 (a)(b)   269   270,866  
SLM Student Loan Trust:          
  Series 2008-5, Class A3, 1.58%, 1/25/18 (a)   414   415,448  
                   
Asset-Backed Securities Par
(000)
  Value  
 
Asset-Backed Securities (continued)  
SLM Student Loan Trust (concluded):          
  Series 2008-5, Class A4, 1.98%, 7/25/23 (a) USD  1,245 $ 1,294,877  
  Series 2012-A, Class A2, 3.83%, 1/17/45 (b)   690   729,331  
  Series 2014-A, Class B, 3.50%, 11/15/44 (b)   500   494,842  
Small Business Administration Participation Certificates, Series 1996-20K, Class 1, 6.95%, 11/01/16   33   34,338  
Sound Point CLO, Ltd., Series 2014-3A, Class D, 3.89%, 1/23/27 (a)(b)   1,500   1,446,000  
Steele Creek CLO 2014-1 Ltd., Series 2014-1A, Class C, 3.48%, 8/21/26 (a)(b)   2,500   2,485,000  
Stewart Park CLO, Ltd. 2015-1, Series 2015-1A, Class D, 3.72%, 4/15/26 (a)(b)   1,000   969,500  
Structured Asset Securities Corp., Series 2002-AL1, Class A2, 3.45%, 2/25/32   928   923,797  
Symphony CLO VII, Ltd., Series 2011-7A, Class E, 3.88%, 7/28/21 (a)(b)   1,500   1,486,837  
Symphony CLO, Ltd., Series 2012-10AR, Class DR, 4.12%, 7/23/23 (a)(b)   1,000   1,002,598  
Venture CDO Ltd., 3.35%, 10/15/26 (a)(b)   1,550   1,549,959  
Venture XIX CLO, Ltd., Series 2014-19A, Class C, 3.55%, 1/15/27 (a)(b)   555   555,000  
Voyage CLO Ltd., Series 2014-3A, Class C, 3.88%, 7/25/26 (a)(b)   1,750   1,722,163  
Voyage CLO, Ltd., Series 2012-2AR, Class CR, 3.22%, 10/15/22 (a)(b)   1,500   1,500,000  
World Financial Network Credit Card Master Trust, Series 2012-C, Class C, 4.55%, 8/15/22   2,360   2,466,771  
   
    117,703,742  
 
Interest Only Asset-Backed Securities — 0.1%  
Sterling Bank Trust, Series 2004-2, Class Note, 2.08%, 3/30/30 (b)   4,360   306,548  
Sterling Coofs Trust, Series 2004-1, Class A, 2.36%, 4/15/29   9,085   621,741  
 
    928,289  
 
Total Asset-Backed Securities14.8%   118,632,031  
 
                   


BLACKROCK CORE BOND TRUSTMAY 31, 20152
 
Schedule of Investments (continued) BlackRock Core Bond Trust (BHK)
  (Percentages shown are based on Net Assets)
Corporate Bonds Par
(000)
  Value  
 
Aerospace & Defense — 0.3%  
Huntington Ingalls Industries, Inc., 7.13%, 3/15/21 USD  460 $ 492,200  
United Technologies Corp., 6.13%, 7/15/38 (c)   1,450   1,805,309  
   
    2,297,509  
 
Airlines — 2.2%  
Air Canada Pass-Through Trust, Series 2015-1, Class B, 3.88%, 9/15/24 (b)   2,000   1,980,000  
American Airlines Pass-Through Trust, Series 2013-2:          
  Class A, 4.95%, 7/15/24 (c)   4,315   4,638,109  
  Class B, 5.60%, 1/15/22 (b)   936   976,219  
Continental Airlines Pass-Through Trust:          
  Series 2010-1, Class B, 6.00%, 7/12/20   742   786,860  
  Series 2012-3, Class C, 6.13%, 4/29/18   1,000   1,052,500  
United Airlines Pass-Through Trust:          
  Series 2013-1, Class A, 4.30%, 2/15/27   3,908   4,122,523  
  Series 2014-2, Class B, 4.63%, 3/03/24   2,750   2,829,062  
US Airways Pass-Through Trust, Series 2012-1, Class C, 9.13%, 10/01/15   1,313   1,338,832  
   
    17,724,105  
 
Auto Components — 0.8%  
Icahn Enterprises LP/Icahn Enterprises Finance Corp.:          
  3.50%, 3/15/17   182   184,048  
  4.88%, 3/15/19   2,660   2,743,125  
  6.00%, 8/01/20   1,906   2,048,950  
  5.88%, 2/01/22   1,578   1,654,927  
   
    6,631,050  
 
Automobiles — 1.1%  
Ford Motor Co., 4.75%, 1/15/43 (c)   4,255   4,329,633  
General Motors Co., 6.25%, 10/02/43   2,506   2,899,209  
                   
Corporate Bonds Par
(000)
  Value  
 
Automobiles (concluded)  
Jaguar Land Rover Automotive PLC, 4.13%, 12/15/18 (b) USD  1,500 $ 1,539,375  
   
    8,768,217  
 
Banks — 5.0%  
The Bank of New York Mellon Corp., Series E, 4.95% (a)(d)   2,000   2,000,000  
Barclays Bank PLC, 7.63%, 11/21/22   3,500   4,068,750  
Barclays PLC, 3.65%, 3/16/25   4,320   4,228,217  
Capital One Financial Corp., Series E, 5.55% (a)(d)   3,500   3,504,375  
CIT Group, Inc.:          
  5.50%, 2/15/19 (b)   796   840,775  
  5.38%, 5/15/20   3,300   3,502,125  
Depfa ACS Bank, 5.13%, 3/16/37 (b)   7,925   9,702,633  
HSBC Holdings PLC:          
  4.25%, 3/14/24 (c)   2,020   2,106,901  
  6.10%, 1/14/42   610   781,131  
Rabobank Nederland (c):          
  3.88%, 2/08/22   2,780   2,960,544  
  3.95%, 11/09/22   3,000   3,071,478  
Wells Fargo & Co., 3.50%, 3/08/22 (c)   2,780   2,918,594  
   
    39,685,523  
 
Building Products — 0.1%  
Cemex SAB de CV, 5.88%, 3/25/19 (b)   400   413,000  
 
Capital Markets — 2.1%  
CDP Financial, Inc., 5.60%, 11/25/39 (b)(c)   5,890   7,518,438  
Credit Suisse Group AG, 7.50% (a)(b)(d)   3,000   3,191,250  
Morgan Stanley, 6.25%, 8/28/17 (c)   3,855   4,242,782  
State Street Corp., Series F, 5.25% (a)(d)   2,000   2,022,500  
   
    16,974,970  
 
Chemicals — 0.8%  
Axalta Coating Systems US Holdings, Inc./Axalta Coating Systems Dutch Holding BV, 7.38%, 5/01/21 (b)   302   327,670  
Axiall Corp., 4.88%, 5/15/23   304   299,440  
The Dow Chemical Co., 4.13%, 11/15/21   700   750,851  
Huntsman International LLC, 4.88%, 11/15/20   595   603,925  
Methanex Corp., 3.25%, 12/15/19   4,148   4,202,314  
                   


BLACKROCK CORE BOND TRUSTMAY 31, 20153
 
Schedule of Investments (continued) BlackRock Core Bond Trust (BHK)
  (Percentages shown are based on Net Assets)
Corporate Bonds Par
(000)
  Value  
 
Chemicals (concluded)  
PetroLogistics LP/PetroLogistics Finance Corp., 6.25%, 4/01/20 USD  322 $ 343,163  
   
    6,527,363  
 
Commercial Services & Supplies — 1.1%  
ADS Waste Holdings, Inc., 8.25%, 10/01/20   491   517,391  
Aviation Capital Group Corp. (b):          
  4.63%, 1/31/18   1,300   1,355,887  
  7.13%, 10/15/20   1,800   2,107,906  
Brand Energy & Infrastructure Services, Inc., 8.50%, 12/01/21 (b)   325   312,000  
Mobile Mini, Inc., 7.88%, 12/01/20   1,640   1,738,400  
The ADT Corp., 4.88%, 7/15/42   1,078   857,010  
United Rentals North America, Inc.:          
  7.38%, 5/15/20   770   829,675  
  7.63%, 4/15/22   907   990,898  
   
    8,709,167  
 
Communications Equipment — 1.1%  
ADC Telecommunications, Inc., 3.50%, 7/15/15 (e)   8,670   8,670,000  
 
Construction & Engineering — 0.1%  
ABB Finance USA, Inc., 4.38%, 5/08/42   386   410,450  
BlueLine Rental Finance Corp., 7.00%, 2/01/19 (b)   192   198,240  
Safway Group Holding LLC/Safway Finance Corp., 7.00%, 5/15/18 (b)   400   410,000  
   
    1,018,690  
 
Construction Materials — 0.6%  
Allegion US Holding Co., Inc., 5.75%, 10/01/21   894   936,465  
HD Supply, Inc., 7.50%, 7/15/20   3,088   3,338,900  
Lafarge SA, 7.13%, 7/15/36   270   335,618  
   
    4,610,983  
 
Consumer Finance — 2.2%  
Ally Financial, Inc.:          
  5.50%, 2/15/17   3,000   3,135,000  
  6.25%, 12/01/17   320   343,200  
  8.00%, 3/15/20   900   1,064,250  
  8.00%, 11/01/31   600   738,000  
Corivas Campus Living USG LLC, 5.30%, 7/01/50   5,700   5,700,000  
Discover Financial Services, 3.85%, 11/21/22   500   510,532  
Ford Motor Credit Co. LLC:          
  6.63%, 8/15/17   280   309,144  
                   
Corporate Bonds Par
(000)
  Value  
 
Consumer Finance (concluded)  
Ford Motor Credit Co. LLC (concluded):          
  8.13%, 1/15/20 USD  2,530 $ 3,131,905  
  4.25%, 9/20/22   1,600   1,702,949  
SLM Corp., 6.25%, 1/25/16   1,312   1,344,800  
   
    17,979,780  
 
Containers & Packaging — 0.4%  
Crown Americas LLC/Crown Americas Capital Corp. III, 6.25%, 2/01/21   182   191,100  
Sealed Air Corp. (b):          
  6.50%, 12/01/20   1,100   1,226,500  
  8.38%, 9/15/21   450   506,250  
Smurfit Kappa Acquisitions, 4.88%, 9/15/18 (b)   820   865,100  
   
    2,788,950  
 
Diversified Consumer Services — 0.2%  
APX Group, Inc., 6.38%, 12/01/19   535   534,331  
Service Corp. International, 4.50%, 11/15/20   1,240   1,274,100  
   
    1,808,431  
 
Diversified Financial Services — 7.0%  
Aircastle Ltd., 6.25%, 12/01/19   1,413   1,556,066  
Bank of America Corp. (c):          
  5.63%, 7/01/20   2,200   2,515,823  
  3.30%, 1/11/23   10,000   10,018,660  
  Series L, 3.95%, 4/21/25   2,475   2,452,579  
FMR LLC, 4.95%, 2/01/33 (b)(c)   2,300   2,466,858  
General Electric Capital Corp.:          
  6.75%, 3/15/32 (c)   2,500   3,368,928  
  6.15%, 8/07/37 (c)   2,150   2,800,351  
  6.88%, 1/10/39   135   189,084  
General Motors Financial Co., Inc., 4.25%, 5/15/23   807   827,980  
The Goldman Sachs Group, Inc., 3.75%, 5/22/25 (c)   8,965   9,044,018  
IntercontinentalExchange Group, Inc., 4.00%, 10/15/23   470   500,888  
Intesa Sanpaolo SpA, 5.02%, 6/26/24 (b)   2,290   2,297,408  
Jefferies Finance LLC/JFIN Co-Issuer Corp., 7.38%, 4/01/20 (b)   2,500   2,506,250  
Moody's Corp., 4.50%, 9/01/22 (c)   1,800   1,941,876  
Northern Trust Corp., 3.95%, 10/30/25 (c)   8,000   8,446,488  
Reynolds Group Issuer, Inc.:          
  7.88%, 8/15/19   1,120   1,173,200  
  5.75%, 10/15/20   2,000   2,082,500  
                   


BLACKROCK CORE BOND TRUSTMAY 31, 20154
 
Schedule of Investments (continued) BlackRock Core Bond Trust (BHK)
  (Percentages shown are based on Net Assets)
Corporate Bonds Par
(000)
  Value  
 
Diversified Financial Services (concluded)  
Reynolds Group Issuer, Inc. (concluded):          
  6.88%, 2/15/21 USD  1,935 $ 2,041,425  
   
    56,230,382  
 
Diversified Telecommunication Services — 3.0%  
AT&T, Inc., 4.75%, 5/15/46   2,710   2,580,627  
CenturyLink, Inc., Series V, 5.63%, 4/01/20   800   835,000  
Level 3 Financing, Inc., 8.63%, 7/15/20   1,230   1,326,863  
Telecom Italia Capital SA, 6.00%, 9/30/34   1,550   1,542,250  
Verizon Communications, Inc. (c):          
  3.50%, 11/01/21   1,000   1,039,061  
  6.40%, 2/15/38   6,879   8,230,441  
  6.55%, 9/15/43   6,751   8,200,332  
Windstream Corp.:          
  7.88%, 11/01/17   200   215,500  
  7.75%, 10/15/20   100   101,625  
  6.38%, 8/01/23   20   16,800  
   
    24,088,499  
 
Electric Utilities — 5.6%  
Berkshire Hathaway Energy Co., 6.50%, 9/15/37 (c)   5,515   6,995,893  
The Cleveland Electric Illuminating Co.:          
  8.88%, 11/15/18   242   295,769  
  5.95%, 12/15/36   434   499,956  
CMS Energy Corp., 5.05%, 3/15/22 (c)   1,832   2,043,768  
ComEd Financing III, 6.35%, 3/15/33   300   312,698  
Duke Energy Carolinas LLC:          
  6.10%, 6/01/37   640   808,496  
  6.00%, 1/15/38 (c)   1,675   2,161,187  
  4.25%, 12/15/41 (c)   750   774,425  
Duke Energy Florida, Inc., 6.40%, 6/15/38 (c)   770   1,020,345  
E.ON International Finance BV, 6.65%, 4/30/38 (b)(c)   3,100   3,908,474  
Electricite de France SA, 5.60%, 1/27/40 (b)(c)   2,800   3,239,015  
Florida Power Corp., 6.35%, 9/15/37 (c)   2,775   3,712,498  
Jersey Central Power & Light Co., 7.35%, 2/01/19   490   572,267  
Ohio Power Co., Series D, 6.60%, 3/01/33 (c)   3,000   3,901,299  
PacifiCorp, 6.25%, 10/15/37 (c)   1,225   1,596,086  
Public Service Co. of Colorado, Series 17, 6.25%, 9/01/37 (c)   2,550   3,478,083  
                   
Corporate Bonds Par
(000)
  Value  
 
Electric Utilities (concluded)  
Southern California Edison Co. (c):          
  5.63%, 2/01/36 USD  1,300 $ 1,613,170  
  Series A, 5.95%, 2/01/38   2,175   2,740,211  
Virginia Electric and Power Co., Series A, 6.00%, 5/15/37 (c)   3,920   4,947,232  
   
    44,620,872  
 
Energy Equipment & Services — 2.2%  
Calfrac Holdings LP, 7.50%, 12/01/20 (b)   940   878,900  
Ensco PLC, 4.70%, 3/15/21 (c)   3,490   3,609,508  
Enterprise Products Operating LLC, 6.13%, 10/15/39 (c)   1,400   1,627,115  
EOG Resources, Inc., 2.63%, 3/15/23 (c)   3,800   3,750,615  
Genesis Energy LP/Genesis Energy Finance Corp., 5.75%, 2/15/21   142   142,000  
GrafTech International Ltd., 6.38%, 11/15/20   1,160   1,090,400  
MEG Energy Corp., 6.50%, 3/15/21 (b)   560   543,200  
Peabody Energy Corp.:          
  6.00%, 11/15/18   2,507   1,779,970  
  6.25%, 11/15/21 (c)   2,483   1,222,878  
Seadrill Ltd., 6.13%, 9/15/17 (b)   3,180   2,838,150  
   
    17,482,736  
 
Food & Staples Retailing — 0.1%  
Rite Aid Corp.:          
  6.75%, 6/15/21   363   382,057  
  6.13%, 4/01/23 (b)   195   202,800  
   
    584,857  
 
Food Products — 0.2%  
Barry Callebaut Services NV, 5.50%, 6/15/23 (b)   1,293   1,381,609  
Smithfield Foods, Inc., 5.88%, 8/01/21 (b)   338   354,055  
   
    1,735,664  
 
Health Care Equipment & Supplies — 0.1%  
Teleflex, Inc., 6.88%, 6/01/19   770   796,473  
 
Health Care Providers & Services — 2.4%  
CHS/Community Health Systems, Inc., 5.13%, 8/15/18   800   823,000  
ConvaTec Healthcare E SA, 7.38%, 12/15/17 (b) EUR 988   1,125,704  
HCA Holdings, Inc., 7.75%, 5/15/21 USD 283   302,816  
HCA, Inc.:          
  3.75%, 3/15/19   264   267,960  
  6.50%, 2/15/20   4,322   4,824,432  
  4.75%, 5/01/23   2,322   2,403,270  
                   


BLACKROCK CORE BOND TRUSTMAY 31, 20155
 
Schedule of Investments (continued) BlackRock Core Bond Trust (BHK)
  (Percentages shown are based on Net Assets)
Corporate Bonds Par
(000)
  Value  
 
Health Care Providers & Services (concluded)  
Tenet Healthcare Corp.:          
  6.25%, 11/01/18 USD  1,609 $ 1,752,796  
  6.00%, 10/01/20   1,244   1,331,080  
  4.50%, 4/01/21   766   758,340  
  4.38%, 10/01/21   3,530   3,459,400  
  8.13%, 4/01/22   2,317   2,525,530  
   
    19,574,328  
 
Hotels, Restaurants & Leisure — 2.4%  
Caesars Entertainment Resort Properties LLC/Caesars Entertainment Resort Property, 8.00%, 10/01/20   2,120   2,146,500  
Six Flags Entertainment Corp., 5.25%, 1/15/21 (b)   1,724   1,780,030  
The Unique Pub Finance Co. PLC:          
  Series A3, 6.54%, 3/30/21 GBP 3,178   5,112,776  
  Series A4, 5.66%, 6/30/27   1,199   1,869,041  
  Series M, 7.40%, 3/28/24   3,000   4,722,756  
  Series N, 6.46%, 3/30/32   2,390   3,232,795  
   
    18,863,898  
 
Household Durables — 0.5%  
Beazer Homes USA, Inc.:          
  6.63%, 4/15/18 USD 580   599,575  
  7.50%, 9/15/21   166   166,830  
Standard Pacific Corp., 10.75%, 9/15/16   2,100   2,325,750  
Taylor Morrison Communities, Inc./Monarch Communities, Inc., 5.25%, 4/15/21 (b)   371   372,855  
Tri Pointe Holdings, Inc. (b):          
  4.38%, 6/15/19   430   423,550  
  5.88%, 6/15/24   290   285,287  
   
    4,173,847  
 
Household Products — 0.1%  
Spectrum Brands, Inc.:          
  6.38%, 11/15/20   400   427,000  
  6.63%, 11/15/22   550   589,875  
   
    1,016,875  
 
Independent Power and Renewable Electricity Producers — 0.3%  
Calpine Corp. (b):          
  6.00%, 1/15/22   274   293,180  
  5.88%, 1/15/24   194   207,580  
NRG REMA LLC, Series C, 9.68%, 7/02/26   1,537   1,667,645  
   
    2,168,405  
 
Industrial Conglomerates — 0.0%  
Smiths Group PLC, 3.63%, 10/12/22 (b)   360   359,030  
 
                   
Corporate Bonds Par
(000)
  Value  
 
Insurance — 2.5%  
A-S Co-Issuer Subsidiary, Inc./A-S Merger Sub LLC, 7.88%, 12/15/20 (b) USD  1,221 $ 1,254,578  
AXA SA, 5.25%, 4/16/40 (a) EUR 500   630,967  
Five Corners Funding Trust, 4.42%, 11/15/23 (b)(c) USD 2,050   2,160,386  
Hartford Financial Services Group, Inc.:          
  6.00%, 1/15/19 (c)   690   778,592  
  5.13%, 4/15/22   1,860   2,088,196  
Liberty Mutual Group, Inc., 6.50%, 5/01/42 (b)(c)   2,000   2,408,508  
Lincoln National Corp. (c):          
  6.25%, 2/15/20   1,260   1,471,732  
  3.35%, 3/09/25   1,045   1,039,641  
Metlife, Inc., 5.25%, 12/31/49 (a)   2,000   2,002,500  
MPL 2 Acquisition Canco, Inc., 9.88%, 8/15/18 (b)   680   719,100  
Muenchener Rueckversicherungs AG, 6.00%, 5/26/41 (a) EUR 400   541,132  
Prudential Financial, Inc. (c):          
  7.38%, 6/15/19 USD 550   659,291  
  5.38%, 6/21/20   500   569,341  
  4.50%, 11/15/20   850   939,196  
  5.90%, 3/17/36   500   577,826  
  5.70%, 12/14/36   1,625   1,866,041  
   
    19,707,027  
 
Internet Software & Services — 0.0%  
Equinix, Inc., 4.88%, 4/01/20   173   178,623  
 
IT Services — 0.6%  
Ceridian HCM Holding, Inc., 11.00%, 3/15/21 (b)   420   444,675  
First Data Corp. (b):          
  7.38%, 6/15/19   980   1,019,200  
  6.75%, 11/01/20   3,384   3,612,420  
   
    5,076,295  
 
Life Sciences Tools & Services — 0.1%  
Agilent Technologies, Inc., 3.20%, 10/01/22   500   489,834  
 
Marine — 0.3%  
Nakilat, Inc., Series A, 6.07%, 12/31/33 (b)(c)   2,150   2,520,155  
 
Media — 4.9%  
21st Century Fox America, Inc., 7.63%, 11/30/28   385   516,378  
AMC Networks, Inc.:          
  7.75%, 7/15/21   640   696,000  
  4.75%, 12/15/22   686   699,720  
Cinemark USA, Inc., 5.13%, 12/15/22   350   357,000  
                   


BLACKROCK CORE BOND TRUSTMAY 31, 20156
 
Schedule of Investments (continued) BlackRock Core Bond Trust (BHK)
  (Percentages shown are based on Net Assets)
Corporate Bonds Par
(000)
  Value  
 
Media (concluded)  
Clear Channel Worldwide Holdings, Inc., Series B, 6.50%, 11/15/22 USD  4,980 $ 5,257,443  
Comcast Cable Communications Holdings, Inc., 9.46%, 11/15/22 (c)   2,600   3,710,840  
Comcast Corp.:          
  3.38%, 8/15/25   4,500   4,562,379  
  6.45%, 3/15/37 (c)   790   1,000,304  
Cox Communications, Inc. (b):          
  6.95%, 6/01/38   1,000   1,172,440  
  8.38%, 3/01/39 (c)   3,475   4,649,998  
DIRECTV Holdings LLC/DIRECTV Financing Co., Inc.:          
  6.38%, 3/01/41   520   590,300  
  5.15%, 3/15/42   1,400   1,370,725  
Gray Television, Inc., 7.50%, 10/01/20   666   709,290  
iHeartCommunications, Inc., 9.00%, 12/15/19   611   600,308  
Inmarsat Finance PLC, 4.88%, 5/15/22 (b)   1,000   990,000  
Intelsat Jackson Holdings SA, 5.50%, 8/01/23   700   642,908  
The Interpublic Group of Cos., Inc., 3.75%, 2/15/23   2,000   2,042,030  
Live Nation Entertainment, Inc., 7.00%, 9/01/20 (b)   218   232,988  
NAI Entertainment Holdings/NAI Entertainment Holdings Finance Corp., 5.00%, 8/01/18 (b)   637   656,110  
Sirius XM Radio, Inc., 4.25%, 5/15/20 (b)   893   891,884  
TCI Communications, Inc., 7.88%, 2/15/26 (c)   610   845,650  
Time Warner Inc.:   2,500   2,491,035  
  3.60%, 7/15/25   2,500   2,491,035  
  6.10%, 7/15/40   830   973,431  
Unitymedia Hessen GmbH & Co. KG/Unitymedia NRW GmbH, 5.50%, 1/15/23 (b)   505   520,781  
Univision Communications, Inc., 5.13%, 5/15/23 (b)   2,306   2,311,765  
Virgin Media Secured Finance PLC, 5.38%, 4/15/21 (b)   711   744,772  
   
    39,236,479  
 
Metals & Mining — 2.8%  
Alcoa, Inc., 5.40%, 4/15/21   2,900   3,153,750  
ArcelorMittal:          
  4.50%, 8/05/15   347   348,735  
  6.13%, 6/01/18   770   825,825  
Commercial Metals Co., 4.88%, 5/15/23   1,095   1,040,250  
                   
Corporate Bonds Par
(000)
  Value  
 
Metals & Mining (concluded)  
Corp. Nacional del Cobre de Chile, 3.00%, 7/17/22 (b) USD  3,131 $ 3,079,216  
Freeport-McMoRan Copper & Gold, Inc., 5.45%, 3/15/43   900   784,660  
Novelis, Inc., 8.75%, 12/15/20   8,225   8,762,175  
Wise Metals Group LLC/Wise Alloys Finance Corp., 8.75%, 12/15/18 (b)   1,200   1,281,012  
Xstrata Canada Corp., 6.20%, 6/15/35   2,800   2,936,223  
   
    22,211,846  
 
Multiline Retail — 0.3%  
Dufry Finance SCA, 5.50%, 10/15/20 (b)   2,520   2,629,749  
 
Oil, Gas & Consumable Fuels — 5.2%  
Access Midstream Partners LP/ACMP Finance Corp., 6.13%, 7/15/22   800   861,000  
Antero Resources Finance Corp., 5.38%, 11/01/21   306   309,825  
Bonanza Creek Energy, Inc., 6.75%, 4/15/21   198   191,565  
Cenovus Energy, Inc., 6.75%, 11/15/39 (c)   1,500   1,780,726  
Chesapeake Energy Corp., 5.75%, 3/15/23   717   708,037  
ConocoPhillips Canada Funding Co., 5.95%, 10/15/36 (c)   685   830,093  
Crestwood Midstream Partners LP/Crestwood Midstream Finance Corp., 6.13%, 3/01/22   110   114,813  
Denbury Resources, Inc., 4.63%, 7/15/23   627   572,137  
El Paso LLC, 7.80%, 8/01/31   90   105,609  
El Paso Natural Gas Co., 8.38%, 6/15/32   550   678,792  
Energy Transfer Partners LP, 7.50%, 7/01/38   1,000   1,212,303  
KeySpan Gas East Corp., 5.82%, 4/01/41 (b)(c)   1,010   1,253,942  
Kinder Morgan Energy Partners LP:          
  6.50%, 9/01/39   3,000   3,187,452  
  6.55%, 9/15/40   220   232,169  
  6.38%, 3/01/41   310   328,424  
Linn Energy LLC/Linn Energy Finance Corp., 6.25%, 11/01/19   474   405,270  
Marathon Petroleum Corp., 6.50%, 3/01/41   2,049   2,451,969  
                   


BLACKROCK CORE BOND TRUSTMAY 31, 20157
 
Schedule of Investments (continued) BlackRock Core Bond Trust (BHK)
  (Percentages shown are based on Net Assets)
Corporate Bonds Par
(000)
  Value  
 
Oil, Gas & Consumable Fuels (concluded)  
MarkWest Energy Partners LP/MarkWest Energy Finance Corp.:          
  6.25%, 6/15/22 USD  106 $ 117,840  
  4.50%, 7/15/23   35   34,563  
MidAmerican Energy Co., 5.80%, 10/15/36 (c)   1,500   1,898,172  
MidAmerican Energy Holdings Co., 5.95%, 5/15/37 (c)   1,750   2,121,205  
Nexen, Inc.:          
  6.40%, 5/15/37   400   490,824  
  7.50%, 7/30/39 (c)   1,670   2,310,126  
Pacific Drilling SA, 5.38%, 6/01/20 (b)   294   242,550  
PBF Holding Co. LLC/PBF Finance Corp., 8.25%, 2/15/20   94   100,345  
PDC Energy, Inc., 7.75%, 10/15/22   520   556,400  
Pioneer Natural Resources Co., 3.95%, 7/15/22   700   719,868  
Range Resources Corp.:          
  5.75%, 6/01/21   213   220,988  
  5.00%, 8/15/22   53   52,735  
  5.00%, 3/15/23   125   125,000  
Regency Energy Partners LP/Regency Energy Finance Corp., 4.50%, 11/01/23   498   500,739  
Rosetta Resources, Inc., 5.63%, 5/01/21   596   631,820  
Sabine Pass Liquefaction LLC:          
  5.63%, 2/01/21   3,578   3,694,285  
  6.25%, 3/15/22   796   837,790  
  5.63%, 4/15/23   937   953,397  
SandRidge Energy, Inc.:          
  8.75%, 1/15/20   48   31,080  
  7.50%, 2/15/23   620   344,100  
Summit Midstream Holdings LLC/Summit Midstream Finance Corp., 7.50%, 7/01/21   774   808,830  
Ultra Petroleum Corp., 5.75%, 12/15/18 (b)   357   345,397  
Western Gas Partners LP, 5.38%, 6/01/21   1,425   1,580,948  
Whiting Petroleum Corp., 5.00%, 3/15/19   1,642   1,642,000  
The Williams Cos., Inc., Series A, 7.50%, 1/15/31   5,000   5,782,675  
   
    41,367,803  
 
Paper & Forest Products — 0.3%  
International Paper Co.:          
  7.50%, 8/15/21   150   188,896  
  4.75%, 2/15/22   840   925,313  
                   
Corporate Bonds Par
(000)
  Value  
 
Paper & Forest Products (concluded)  
International Paper Co. (concluded):          
  6.00%, 11/15/41 USD  870 $ 978,364  
   
    2,092,573  
 
Pharmaceuticals — 1.8%  
AbbVie, Inc., 3.60%, 5/14/25   870   875,563  
Actavis Funding SCS, 4.55%, 3/15/35   2,140   2,121,547  
Actavis, Inc., 3.25%, 10/01/22   4,000   3,951,844  
Forest Laboratories, Inc. (b):          
  4.38%, 2/01/19   456   486,724  
  5.00%, 12/15/21   758   832,026  
Grifols Worldwide Operations, Ltd., 5.25%, 4/01/22   200   204,000  
Jaguar Holding Co. II/Jaguar Merger Sub, Inc., 9.50%, 12/01/19 (b)   1,040   1,116,700  
Valeant Pharmaceuticals International, Inc. (b):          
  6.75%, 8/15/18   2,643   2,793,321  
  6.38%, 10/15/20   1,150   1,226,906  
  5.63%, 12/01/21   754   782,275  
   
    14,390,906  
 
Real Estate Investment Trusts (REITs) — 1.5%  
AvalonBay Communities, Inc., 3.45%, 6/01/25   1,535   1,555,104  
ERP Operating LP:          
  3.38%, 6/01/25   1,245   1,256,687  
  4.50%, 6/01/45   1,155   1,190,120  
Felcor Lodging LP, 5.63%, 3/01/23   494   516,230  
HCP, Inc. (c):          
  3.88%, 8/15/24   3,000   3,011,985  
  4.00%, 6/01/25   2,000   2,004,544  
Simon Property Group LP, 4.75%, 3/15/42 (c)   1,670   1,802,309  
Ventas Realty LP/Ventas Capital Corp., 4.75%, 6/01/21   550   603,833  
   
    11,940,812  
 
Real Estate Management & Development — 0.9%  
Lennar Corp., 4.75%, 11/15/22   880   872,300  
Northwest Florida Timber Finance LLC, 4.75%, 3/04/29 (b)(c)   4,600   4,230,054  
Realogy Corp., 7.63%, 1/15/20 (b)(c)   1,993   2,130,019  
   
    7,232,373  
 
Road & Rail — 0.7%  
Burlington Northern Santa Fe LLC, 5.75%, 5/01/40 (c)   1,890   2,266,781  
                   


BLACKROCK CORE BOND TRUSTMAY 31, 20158
 
Schedule of Investments (continued) BlackRock Core Bond Trust (BHK)
  (Percentages shown are based on Net Assets)
Corporate Bonds Par
(000)
  Value  
 
Road & Rail (concluded)  
The Hertz Corp.:          
  4.25%, 4/01/18 USD  473 $ 478,913  
  5.88%, 10/15/20   460   469,775  
  7.38%, 1/15/21   2,070   2,165,737  
   
    5,381,206  
 
Semiconductors & Semiconductor Equipment — 0.4%  
NXP BV/NXP Funding LLC, 5.75%, 2/15/21 (b)   940   991,700  
Seagate HDD Cayman, 4.88%, 6/01/27 (b)   2,500   2,525,207  
   
    3,516,907  
 
Software — 0.5%  
Nuance Communications, Inc., 5.38%, 8/15/20 (b)   2,170   2,188,988  
Oracle Corp., 5.38%, 7/15/40 (c)   1,575   1,794,846  
   
    3,983,834  
 
Specialty Retail — 0.3%  
The Home Depot, Inc., 5.88%, 12/16/36 (c)   1,660   2,049,791  
 
Textiles, Apparel & Luxury Goods — 0.3%  
PVH Corp., 4.50%, 12/15/22   977   991,655  
Springs Industries, Inc., 6.25%, 6/01/21   806   793,910  
The William Carter Co., 5.25%, 8/15/21   657   679,995  
   
    2,465,560  
 
Tobacco — 1.2%  
Altria Group, Inc.:          
  9.95%, 11/10/38   516   862,221  
  10.20%, 2/06/39   894   1,520,807  
  5.38%, 1/31/44 (c)   4,030   4,318,649  
Lorillard Tobacco Co., 7.00%, 8/04/41   1,000   1,238,000  
Reynolds American, Inc., 4.75%, 11/01/42   2,100   2,014,043  
   
    9,953,720  
 
Wireless Telecommunication Services — 2.4%  
America Movil SAB de CV, 2.38%, 9/08/16 (c)   1,595   1,618,941  
Crown Castle International Corp., 5.25%, 1/15/23   930   980,453  
Crown Castle Towers LLC, 6.11%, 1/15/40 (b)   3,155   3,621,678  
Digicel Group Ltd., 8.25%, 9/30/20 (b)   865   897,005  
Digicel Ltd., 6.00%, 4/15/21 (b)   1,550   1,530,625  
Rogers Communications, Inc., 7.50%, 8/15/38 (c)   2,325   3,178,635  
                   
Corporate Bonds Par
(000)
  Value  
 
Wireless Telecommunication Services (concluded)  
SBA Tower Trust, 5.10%, 4/15/17 (b) USD  720 $ 747,354  
Softbank Corp., 4.50%, 4/15/20 (b)   550   565,125  
Sprint Capital Corp., 8.75%, 3/15/32   350   357,000  
Sprint Communications, Inc. (b):          
  9.00%, 11/15/18   1,060   1,215,025  
  7.00%, 3/01/20   1,760   1,942,600  
Sprint Corp., 7.88%, 9/15/23   1,891   1,922,958  
Vodafone Group PLC, 2.50%, 9/26/22   910   834,679  
   
    19,412,078  
 
Total Corporate Bonds69.0%   552,141,175  
 
 
 
Foreign Agency Obligations  
 
Brazilian Government International Bond, 5.00%, 1/27/45   5,724   5,309,010  
Cyprus Government International Bond, 4.63%, 2/03/20 (b) EUR 1,210   1,388,772  
Iceland Government International Bond, 5.88%, 5/11/22 USD 3,555   4,123,537  
Italian Government International Bond, 5.38%, 6/15/33   2,925   3,409,591  
Portugal Government International Bond, 5.13%, 10/15/24 (b)   3,250   3,450,707  
Slovenia Government International Bond, 5.85%, 5/10/23 (b)   864   1,006,992  
 
Total Foreign Agency Obligations2.3%   18,688,609  
 
 
 
Municipal Bonds  
 
City of Detroit Michigan, GO, Financial Recovery (a):          
  Series B-1, 4.00%, 4/01/44   251   149,486  
  Series B-2, 4.00%, 4/01/44   80   48,686  
City of New York New York Municipal Water Finance Authority, Refunding RB, 2nd General Resolution:          
  Series EE, 5.50%, 6/15/43   930   1,095,484  
  Series GG, Build America Bonds, 5.72%, 6/15/42   1,390   1,772,653  
  Water & Sewer System, Series EE, 5.38%, 6/15/43   770   901,116  
East Bay Municipal Utility District, RB, Build America Bonds, 5.87%, 6/01/40   1,900   2,414,045  
                   


BLACKROCK CORE BOND TRUSTMAY 31, 20159
 
Schedule of Investments (continued) BlackRock Core Bond Trust (BHK)
  (Percentages shown are based on Net Assets)
Municipal Bonds Par
(000)
  Value  
 
Indianapolis Local Public Improvement Bond Bank, RB, Build America Bonds, 6.12%, 1/15/40 USD  2,535 $ 3,248,501  
Metropolitan Transportation Authority, RB, Build America Bonds, Series C, 7.34%, 11/15/39   1,295   1,912,417  
Municipal Electric Authority of Georgia Plant Vogtle Units 3 & 4, Refunding RB, Build America Bonds, Series A, 7.06%, 4/01/57   2,000   2,282,280  
New York State Dormitory Authority, RB, Build America Bonds:          
  5.63%, 3/15/39   1,100   1,334,784  
  5.60%, 3/15/40   1,900   2,344,144  
Port Authority of New York & New Jersey, RB, 159th Series, 6.04%, 12/01/29   780   980,444  
State of California, GO, Build America Bonds, Various Purpose:          
  7.55%, 4/01/39   280   422,080  
  7.63%, 3/01/40   1,720   2,592,659  
State of Illinois, GO, Pension, 5.10%, 6/01/33   2,000   1,898,480  
University of California, RB, Build America Bonds, 5.95%, 5/15/45   885   1,074,072  
 
Total Municipal Bonds3.1%   24,471,331  
 
 
 
Non-Agency Mortgage-Backed Securities  
 
Collateralized Mortgage Obligations — 1.2%  
Banc of America Funding Corp., Series 2007-2, Class 1A2, 6.00%, 3/25/37   1,178   1,001,614  
Collateralized Mortgage Obligation Trust, Series 40, Class R, 580.47%, 4/01/18   9   9  
Countrywide Alternative Loan Trust:          
  Series 2005-64CB, Class 1A15, 5.50%, 12/25/35   1,934   1,836,242  
  Series 2006-OA21, Class A1, 0.37%, 3/20/47 (a)   1,316   1,035,797  
Countrywide Home Loan Mortgage Pass-Through Trust, Series 2006-OA5, Class 2A1, 0.38%, 4/25/46 (a)   528   425,277  
                   
Non-Agency Mortgage-Backed Securities Par
(000)
  Value  
 
Collateralized Mortgage Obligations (concluded)  
Credit Suisse Mortgage Capital Certificates, Series 2011-2R, Class 2A1, 2.63%, 7/27/36 (a)(b) USD  1,754 $ 1,768,256  
GMAC Mortgage Corp. Loan Trust, Series 2005-AR3, Class 5A1, 3.54%, 6/19/35 (a)   989   981,616  
GSR Mortgage Loan Trust:          
  Series 2006-4F, Class 1A1, 5.00%, 5/25/36   216   208,974  
  Series 2007-4F, Class 3A1, 6.00%, 7/25/37   369   332,568  
Homebanc Mortgage Trust, Series 2006-2, Class A1, 0.36%, 12/25/36 (a)   862   744,990  
JPMorgan Mortgage Trust, Series 2006-S3, Class 1A12, 6.50%, 8/25/36   140   117,022  
Merrill Lynch Mortgage Investors, Inc., Series 2006-A3, Class 3A1, 2.70%, 5/25/36 (a)   986   799,395  
Residential Funding Securities LLC, Series 2003-RM2, Class AI5, 8.50%, 5/25/33   411   426,144  
WaMu Mortgage Pass-Through Certificates, Series 2007-OA4, Class 1A, 0.92%, 5/25/47 (a)   286   242,939  
   
    9,920,843  
 
Commercial Mortgage-Backed Securities — 15.2%  
Banc of America Merrill Lynch Commercial Mortgage Trust:          
  Series 2006-6, Class A2, 5.31%, 10/10/45   147   147,619  
  Series 2007-1, Class A4, 5.45%, 1/15/49   909   961,507  
  Series 2007-2, Class A4, 5.61%, 4/10/49 (a)   1,500   1,578,740  
Bank of America Merrill Lynch Commercial Mortgage Securities Trust, 3.60%, 4/14/33 (a)(b)   6,690   6,792,979  
Bear Stearns Commercial Mortgage Securities, Series 2005-PWR9, Class A4A, 4.87%, 9/11/42   739   740,088  
Citigroup Commercial Mortgage Trust, Series 2013-GC15, Class B, 5.11%, 9/10/46 (a)   7,183   8,116,682  
Citigroup/Deutsche Bank Commercial Mortgage Trust, Series 2006-CD3, Class AM, 5.65%, 10/15/48   2,193   2,313,711  
                   


BLACKROCK CORE BOND TRUSTMAY 31, 201510
 
Schedule of Investments (continued) BlackRock Core Bond Trust (BHK)
  (Percentages shown are based on Net Assets)
Non-Agency Mortgage-Backed Securities Par
(000)
  Value  
 
Commercial Mortgage-Backed Securities (continued)  
COMM 2015-3BP Mortgage Trust, Series 2015-3BP, Class A, 3.18%, 2/10/35 (b) USD  7,570 $ 7,670,848  
COMM 2015-CCRE22 Mortgage Trust, Series 2015-CR22, Class C, 4.13%, 3/10/48 (a)   5,000   5,052,565  
COMM 2015-LC19 Mortgage Trust, Series 2015-LC19, Class C, 4.26%, 2/10/48 (a)   3,500   3,582,439  
Commercial Mortgage Loan Trust, Series 2008-LS1, Class A4B, 6.04%, 12/10/49 (a)   1,390   1,476,972  
Commercial Mortgage Trust:          
  Series 2006-C7, Class AM, 5.78%, 6/10/46 (a)   3,500   3,643,083  
  Series 2013-CR11, Class B, 5.16%, 10/10/46 (a)   7,000   7,927,850  
  Series 2013-LC6, Class B, 3.74%, 1/10/46   1,390   1,444,512  
  Series 2013-LC6, Class D, 4.29%, 1/10/46 (a)(b)   1,670   1,601,550  
Core Industrial Trust 2015-TEXW, Series 2015-TEXW, Class D, 3.85%, 2/10/34 (a)(b)   4,585   4,620,080  
Credit Suisse Commercial Mortgage Trust:          
  Series 2006-C3, Class AM, 5.81%, 6/15/38 (a)   2,000   2,084,588  
  Series 2006-C5, Class AM, 5.34%, 12/15/39   3,500   3,684,390  
  Series 2010-RR2, Class 2A, 5.95%, 9/15/39 (a)(b)   1,160   1,229,500  
Credit Suisse First Boston Mortgage Securities Corp., Series 2005-C3, Class AJ, 4.77%, 7/15/37   735   734,628  
CSAIL 2015-C1 Commercial Mortgage Trust, Series 2015-C1:          
  Class B, 4.04%, 4/15/50   1,110   1,164,998  
  Class C, 4.45%, 4/15/50   1,000   1,026,227  
  Class D, 3.80%, 4/15/50 (a)(b)   1,000   892,298  
DBRR Trust, Series 2011-C32, Class A3A, 5.72%, 6/17/49 (a)(b)   730   766,728  
GAHR Commercial Mortgage Trust 2015-NRF, Series 2015-NRF, Class DFX, 3.38%, 12/15/19 (a)(b)   6,170   6,106,912  
Greenwich Capital Commercial Funding Corp., Series 2006-GG7, Class A4, 5.82%, 7/10/38 (a)   2,231   2,298,014  
                   
Non-Agency Mortgage-Backed Securities Par
(000)
  Value  
 
Commercial Mortgage-Backed Securities (concluded)  
GS Mortgage Securities Corp. II, Series 2013-GC10, Class B, 3.68%, 2/10/46 (b) USD  2,505 $ 2,574,940  
Hilton USA Trust, Series 2013- HLT, 4.41%, 11/05/30   5,900   5,994,990  
JPMBB Commercial Mortgage Securities Trust, Series 2013-C15, Class D, 5.08%, 11/15/45 (a)(b)   1,600   1,623,461  
JPMorgan Chase Commercial Mortgage Securities Corp., Series 2004-LN2, Class A2, 5.12%, 7/15/41   78   77,722  
JPMorgan Chase Commercial Mortgage Securities Trust, Series 2006-CB14, Class AM, 5.47%, 12/12/44 (a)   660   673,572  
LB-UBS Commercial Mortgage Trust (a):          
  Series 2007-C6, Class A4, 5.86%, 7/15/40   9,590   10,031,423  
  Series 2007-C7, Class A3, 5.87%, 9/15/45   2,186   2,386,167  
Morgan Stanley Capital I Trust, Series 2007-HQ11, Class A4, 5.45%, 2/12/44 (a)   8,000   8,440,888  
Morgan Stanley Capital I Trust 2014-CPT, Series 2014-CPT, Class G, 3.45%, 7/13/29 (a)(b)   3,200   3,049,018  
Morgan Stanley Bank of America Merrill Lynch Trust, Series 2012-C5, Class XA, 1.83%, 8/15/45 (a)(b)   30,256   2,363,850  
RCMC LLC, Series 2012-CRE1, Class A, 5.62%, 11/15/44 (b)   915   936,259  
Wachovia Bank Commercial Mortgage Trust, Series 2007-C33, Class A4, 5.95%, 2/15/51 (a)   4,406   4,648,133  
WF-RBS Commercial Mortgage Trust, Series 2012-C8:          
  Class B, 4.31%, 8/15/45   1,395   1,497,295  
  Class C, 4.88%, 8/15/45 (a)   1,795   1,951,221  
   
    121,544,597  
 
Interest Only Collateralized Mortgage Obligations — 0.0%  
GSMPS Mortgage Loan Trust, Series 1998-5, 0.00%, 6/19/27 (a)(b)   13   13  
 
                   


BLACKROCK CORE BOND TRUSTMAY 31, 201511
 
Schedule of Investments (continued) BlackRock Core Bond Trust (BHK)
  (Percentages shown are based on Net Assets)
Non-Agency Mortgage-Backed Securities Par
(000)
  Value  
 
Interest Only Commercial Mortgage-Backed Securities — 0.7%  
WF-RBS Commercial Mortgage Trust, Class XA (a)(b):          
  Series 2012-C8, 2.19%, 8/15/45 USD 11,733 $ 1,133,008  
  Series 2012-C9, 2.20%, 11/15/45   20,665   2,187,238  
   
    5,684,096  
 
Total Non-Agency Mortgage-Backed Securities17.1%   137,149,549  
 
 
 
Preferred Securities  
 
Capital Trusts  
 
Banks — 5.8%  
Bank of America Corp., Series X, 6.25% (a)(d)   3,570   3,636,937  
BNP Paribas SA, 7.20% (a)(b)(d)   2,000   2,395,400  
Citigroup, Inc.:          
  Series D, 5.95% (a)(d)   2,100   2,071,125  
  Series M, 6.30% (a)(d)   4,000   4,015,000  
Credit Agricole SA:          
  6.63% (a)(b)(d)   1,400   1,403,500  
  7.88% (a)(b)(d)   2,000   2,128,832  
JPMorgan Chase & Co.:          
  Series 1, 7.90% (a)(d)   7,000   7,465,500  
  Series Q, 5.15% (a)(d)   3,000   2,930,625  
  Series U, 6.13% (a)(d)   500   515,000  
  Series V, 5.00% (a)(d)   6,000   5,917,500  
Nordea Bank AB, 6.13% (a)(b)(d)   2,960   3,032,165  
Societe Generale SA:          
  6.00% (a)(b)(d)   5,720   5,462,600  
  7.88% (a)(b)(d)   2,000   2,055,000  
Wells Fargo & Co., Series S, 5.90% (a)(d)   3,390   3,491,700  
   
    46,520,884  
 
Capital Markets — 1.2%  
The Bank of New York Mellon Corp., Series D, 4.50% (a)(c)(d)   8,400   8,001,000  
Morgan Stanley, Series H, 5.45% (a)(d)   1,750   1,754,375  
State Street Capital Trust IV, 1.27%, 6/01/77 (a)   140   119,525  
   
    9,874,900  
 
Consumer Finance — 0.3%  
Capital One Financial Corp., 4.75%, 7/15/21 (c)   1,935   2,138,924  
 
                   
Capital Trusts Par
(000)
  Value  
 
Diversified Financial Services — 0.5%  
General Electric Capital Corp., Series B, 6.25% (a)(d) USD 1,800 $ 2,010,937  
Macquarie Bank Ltd., 10.25%, 6/20/57 (a)   1,800   2,011,500  
   
    4,022,437  
 
Electric Utilities — 0.6%  
Electricite de France SA, 5.25% (a)(b)(d)   4,200   4,364,220  
 
Insurance — 3.8%  
The Allstate Corp:          
  5.75%, 8/15/53 (a)   2,000   2,152,500  
  6.50%, 5/15/67 (a)   4,100   4,735,500  
AXA SA, 6.46% (a)(b)(d)   2,050   2,129,437  
Liberty Mutual Group, Inc., 7.00%, 3/07/67 (a)(b)   1,950   2,006,062  
Lincoln National Corp., 6.05%, 4/20/67 (a)   1,425   1,307,438  
Metlife Capital Trust IV, 7.88%, 12/15/67 (b)   1,285   1,667,287  
MetLife, Inc., 6.40%, 12/15/36 (c)   7,000   8,001,000  
Swiss Re Capital I LP, 6.85% (a)(b)(d)   2,120   2,191,550  
Voya Financial, Inc., 5.65%, 5/15/53 (a)   4,500   4,668,750  
XL Group PLC, Series E, 6.50% (a)(d)   1,625   1,399,938  
   
    30,259,462  
 
Total Capital Trusts12.2%   97,180,827  
 
 
 
Preferred Stocks
Shares
     
 
Banks — 1.2%  
US Bancorp, 6.00% (a)(d)   300,000   8,082,000  
Wells Fargo & Co., 5.85% (a)(d)   75,000   1,939,500  
   
    10,021,500  
 
Capital Markets — 0.4%  
The Goldman Sachs Group, Inc., Series J, 5.50% (a)(d)   92,000   2,287,120  
SCE Trust III, 5.75% (a)(d)   25,314   691,579  
   
    2,978,699  
 
Thrifts & Mortgage Finance — 0.0%  
Fannie Mae, Series S, 8.25% (a)(d)   10,000   41,500  
 
Total Preferred Stocks1.6%   13,041,699  
 
                   


BLACKROCK CORE BOND TRUSTMAY 31, 201512
 
Schedule of Investments (continued) BlackRock Core Bond Trust (BHK)
  (Percentages shown are based on Net Assets)

Trust Preferred
Par
(000)
  Value  
 
Banks — 0.1%  
Citigroup Capital XIII, 7.88% USD 29,583 $ 764,009  
 
Total Preferred Securities13.9%   110,986,535  
 
 
 
U.S. Government Sponsored Agency Securities        
 
Agency Obligations — 3.1%  
Fannie Mae (c):          
  0.00%, 10/09/19 (f)   14,360   13,187,822  
  5.63%, 7/15/37   1,600   2,196,867  
Federal Home Loan Bank (c):          
  5.25%, 12/09/22   1,375   1,657,962  
  5.37%, 9/09/24   2,175   2,677,521  
Resolution Funding Corp. (f):          
  0.00%, 4/15/30   6,055   3,862,242  
  0.00%, 7/15/18 - 10/15/18   1,050   1,005,122  
   
    24,587,536  
 
Collateralized Mortgage Obligations — 0.1%  
Fannie Mae Mortgage-Backed Securities:          
  Series 2005-5, Class PK, 5.00%, 12/25/34   382   405,946  
  Series 1991-87, Class S, 26.19%, 8/25/21 (a)   8   11,197  
  Series G-49, Class S, 1,015.59%, 12/25/21 (a)   —(g)   175  
  Series G-17, Class S, 1,061.87%, 6/25/21 (a)   34   459  
  Series G-33, Class PV, 1,078.42%, 10/25/21   34   195  
  Series G-07, Class S, 1,123.73%, 3/25/21 (a)   —(g)   611  
  Series 1991-46, Class S, 2,476.69%, 5/25/21 (a)   22   1,201  
Freddie Mac Mortgage-Backed Securities:          
  Series 0173, Class R, 9.00%, 11/15/21   2   2  
  Series 0173, Class RS, 9.48%, 11/15/21 (a)   —(g)   2  
  Series 1057, Class J, 1,008.00%, 3/15/21   17   163  
  Series 0019, Class R, 16,280.28%, 3/15/20 (a)   1   163  
   
    420,114  
 
                   
U.S. Government Sponsored Agency
Securities
Par
(000)
  Value  
 
Commercial Mortgage-Backed Securities — 0.7%  
Freddie Mac Mortgage-Backed Securities (a):          
  Series 2013-K24, Class B, 3.50%, 11/25/45 (b)   3,500   3,562,226  
  Series K013, Class A2, 3.97%, 1/25/21   1,870   2,062,111  
  Series 2012-K706, Class C, 4.03%, 11/25/44 (b)   335   347,781  
   
    5,972,118  
 
Interest Only Collateralized Mortgage Obligations — 1.5%  
Fannie Mae Mortgage-Backed Securities:          
  Series 1997-50, Class SI, 1.20%, 4/25/23 (a)   73   2,265  
  Series 2012-96, Class DI, 4.00%, 2/25/27   10,108   1,004,175  
  Series 2012-M9, Class X1, 4.03%, 12/25/17 (a)   22,955   1,801,656  
  Series 2012-47, Class NI, 4.50%, 4/25/42   8,168   1,422,969  
  Series 089, Class 2, 8.00%, 10/25/18   1   46  
  Series 007, Class 2, 8.50%, 4/25/17   —(g)   30  
  Series G92-05, Class H, 9.00%, 1/25/22   6   378  
  Series 094, Class 2, 9.50%, 8/25/21   —(g)   88  
  Series 1990-136, Class S, 19.89%, 11/25/20 (a)   2,519   3,459  
  Series 1991-139, Class PT, 648.35%, 10/25/21   45   345  
  Series 1991-099, Class L, 930.00%, 8/25/21   20   177  
  Series G-10, Class S, 1,087.12%, 5/25/21 (a)   100   2,159  
  Series G-12, Class S, 1,154.03%, 5/25/21 (a)   68   1,177  
Freddie Mac Mortgage-Backed Securities:          
  Series K707, Class X1, 1.55%, 12/25/18 (a)   4,889   232,435  
  Series K710, Class X1, 1.78%, 5/25/19 (a)   16,903   1,011,089  
  Series 2611, Class QI, 5.50%, 9/15/32   1,198   102,037  
  Series 1254, Class Z, 8.50%, 4/15/22   28   6,769  
  Series 1043, Class H, 44.17%, 2/15/21 (a)   2,109   4,011  
                   


BLACKROCK CORE BOND TRUSTMAY 31, 201513
 
Schedule of Investments (continued) BlackRock Core Bond Trust (BHK)
  (Percentages shown are based on Net Assets)
U.S. Government Sponsored Agency
Securities
Par
(000)
  Value  
 
Interest Only Collateralized Mortgage Obligations (concluded)  
Freddie Mac Mortgage-Backed Securities (concluded):          
  Series 1054, Class I, 865.25%, 3/15/21 (a) USD 16 $ 291  
  Series 0176, Class M, 1,010.00%, 7/15/21   7   138  
  Series 1056, Class KD, 1,084.50%, 3/15/21   11   123  
  Series 1148, Class E, 1,174.98%, 10/15/21 (a)   26   443  
  Series 0200, Class R, 197,127.04%, 12/15/22 (a)   —(g)   260  
Ginnie Mae Mortgage-Backed Securities (a):          
  Series 2009-78, Class SD, 6.02%, 9/20/32   8,428   1,586,142  
  Series 2009-116, Class KS, 6.29%, 12/16/39   3,759   584,406  
  Series 2011-52, Class NS, 6.49%, 4/16/41   22,677   4,180,962  
   
    11,948,030  
 
Mortgage-Backed Securities — 6.7%  
Fannie Mae Mortgage-Backed Securities:          
  3.00%, 8/01/43 (c)   13,084   13,292,245  
  4.00%, 12/01/41 - 12/01/43 (c)   9,019   9,688,613  
  4.50%, 7/01/41 - 4/01/42 (c)   20,459   22,295,052  
  5.00%, 8/01/34 (c)   3,452   3,852,569  
  5.50%, 7/01/16 - 6/01/38 (c)   1,946   2,219,904  
  6.00%, 3/01/16 - 12/01/38   1,587   1,813,078  
Freddie Mac Mortgage-Backed Securities, 6.00%, 5/1/16 - 12/1/18   151   154,788  
Ginnie Mae Mortgage-Backed Securities:          
  5.50%, 8/15/33   61   69,624  
  8.00%, 7/15/24   —(g)   280  
   
    53,386,153  
 
                   
U.S. Government Sponsored Agency Securities Par
(000)
  Value  
 
Principal Only Collateralized Mortgage Obligations — 0.0%  
Fannie Mae Mortgage-Backed Securities, 0.00%, 2/25/23 - 6/25/23 (f) USD 22 $ 21,190  
 
Total U.S. Government Sponsored Agency Securities12.1%   96,335,141  
 
 
 
U.S. Treasury Obligations  
U.S. Treasury Bonds, 3.00%, 11/15/44 (c)   65,500   67,316,577  
US Treasury Bond, 3.00%, 5/15/45 (c)   20,117   20,731,514  
 
Total U.S. Treasury Obligations11.0%   88,048,091  
 
Total Long-Term Investments
(Cost — $1,101,545,614) — 143.3%
  1,146,452,462  
 
 
 
Short-Term Securities Shares      
 
BlackRock Liquidity Funds, TempFund, Institutional Class, 0.08% (h)(i)   141,176   141,176  
 
Total Short-Term Securities
(Cost — $141,176) — 0.0%
  141,176  
 
 
 
Options Purchased      
 
(Cost — $757,600) — 0.1%   763,726  
 
Total Investments Before Options Written
(Cost — $1,102,444,390*) — 143.4%
  1,147,357,364  
 
 
 
Options Written      
 
(Premiums Received — $7,679,136) — (0.9)%   (7,090,988)  
 
Total Investments, Net of Options Written
(Cost — $1,094,765,254) — 142.5%
  1,140,266,376  
Liabilities in Excess of Other Assets(42.5)%   (339,879,148)  
   
Net Assets100.0% $ 800,387,228  
   
                   


BLACKROCK CORE BOND TRUSTMAY 31, 201514
 
Schedule of Investments (continued) BlackRock Core Bond Trust (BHK)
   
* As of May 31, 2015, gross unrealized appreciation and depreciation based on cost for federal income tax purposes were as follows:
     
Tax cost $ 1,102,863,501  
     
Gross unrealized appreciation $ 62,081,446  
Gross unrealized depreciation   (17,605,029)  
     
Net unrealized appreciation $ 44,476,417  
     
         


Notes to Schedule of Investments

   
(a) Variable rate security. Rate shown is as of report date.
(b) Security exempt from registration pursuant to Rule 144A under the Securities Act of 1933, as amended. These securities may be resold in transactions exempt from registration to qualified institutional investors.
(c) All or a portion of security has been pledged as collateral in connection with outstanding reverse repurchase agreements.
(d) Security is perpetual in nature and has no stated maturity date.
(e) Convertible security.
(f) Zero-coupon bond.
(g) Amount is less than $500.
(h) During the period ended May 31, 2015, investments in issuers considered to be an affiliate of the Trust for purposes of Section 2(a)(3) of the Investment Company Act of 1940, as amended, were as follows:
   
     

 

 
Affiliate  Shares
Held at
August 31, 2014
  Net Activity  Shares
Held at
May 31, 2015
  Income
             
BlackRock Liquidity Funds, TempFund, Institutional Class  742,474  (601,298)  141,176  $1,469
             
             

 

(i) Represents the current yield as of report date.
   

 

Portfolio Abbreviations

   
ADS American Depositary Shares LIBOR London Interbank Offered Rate
AUD Australian Dollar MBS Mortgage-Backed Security
CAB Capital Appreciation Bonds MXN Mexican Peso
CAD Canadian Dollar NOK Norwegian Krone
CLO Collateralized Loan Obligation NZD New Zealand Dollar
CR Custodian Receipt Radian Radian Guaranty, Inc.
EUR Euro RB Revenue Bonds
FNMA Federal National Mortgage Association SEK Swedish Krona
GBP British Pound USD U.S. Dollar
GO General Obligation Bonds VA Department of Veterans Affairs
JPY Japanese Yen    

 

BLACKROCK CORE BOND TRUSTMAY 31, 201515
 
Schedule of Investments (continued) BlackRock Core Bond Trust (BHK)
   


As of May 31, 2015, reverse repurchase agreements outstanding were as follows:
 
 

 

Counterparty Interest
Rate
Trade
Date
Maturity
Date1
  Face Value   Face Value
Including
Accrued
Interest
 
UBS Securities LLC 0.28% 2/10/14 Open $ 3,373,000 $ 3,385,461  
UBS Securities LLC 0.32% 2/10/14 Open   1,348,000   1,353,692  
UBS Securities LLC 0.32% 2/10/14 Open   1,355,000   1,360,721  
UBS Securities LLC 0.32% 2/10/14 Open   1,416,000   1,421,979  
UBS Securities LLC 0.32% 2/10/14 Open   2,369,000   2,379,002  
UBS Securities LLC 0.33% 2/10/14 Open   1,073,000   1,077,672  
UBS Securities LLC 0.34% 2/10/14 Open   1,410,000   1,416,325  
UBS Securities LLC 0.34% 2/10/14 Open   827,000   830,710  
UBS Securities LLC 0.34% 2/10/14 Open   1,233,000   1,238,531  
UBS Securities LLC 0.34% 2/10/14 Open   3,805,000   3,828,365  
UBS Securities LLC 0.40% 2/10/14 Open   496,000   498,618  
UBS Securities LLC 0.34% 5/13/14 Open   1,172,000   1,176,239  
UBS Securities LLC 0.34% 5/13/14 Open   633,000   635,290  
Barclays Capital, Inc. 0.35% 5/14/14 Open   534,000   535,983  
Barclays Capital, Inc. 0.35% 5/14/14 Open   556,000   558,065  
Barclays Capital, Inc. 0.35% 5/14/14 Open   354,000   355,315  
Barclays Capital, Inc. 0.35% 5/14/14 Open   272,000   273,010  
Barclays Capital, Inc. 0.35% 5/14/14 Open   979,000   982,636  
Barclays Capital, Inc. 0.35% 5/14/14 Open   468,000   469,738  
Barclays Capital, Inc. 0.35% 5/14/14 Open   294,000   295,092  
Barclays Capital, Inc. 0.35% 5/14/14 Open   738,000   740,741  
Barclays Capital, Inc. 0.35% 6/26/14 Open   2,981,250   2,991,105  
BNP Paribas Securities Corp. 0.39% 7/7/14 Open   1,823,000   1,829,478  
BNP Paribas Securities Corp. 0.39% 7/7/14 Open   968,000   971,440  
BNP Paribas Securities Corp. 0.39% 7/7/14 Open   963,000   966,422  
BNP Paribas Securities Corp. 0.39% 7/7/14 Open   1,884,000   1,890,694  
BNP Paribas Securities Corp. 0.39% 7/7/14 Open   490,000   491,741  
BNP Paribas Securities Corp. 0.39% 7/7/14 Open   1,203,000   1,207,275  
BNP Paribas Securities Corp. 0.39% 7/7/14 Open   834,000   836,963  
Bank of America Securities LLC 0.14% 10/28/14 Open   1,306,000   1,307,092  
Bank of America Securities LLC 0.14% 10/28/14 Open   820,000   820,686  
BNP Paribas Securities Corp. 0.14% 10/28/14 Open   847,000   847,708  
BNP Paribas Securities Corp. 0.34% 10/28/14 Open   3,986,000   3,994,094  
BNP Paribas Securities Corp. 0.35% 10/28/14 Open   4,751,000   4,760,931  
BNP Paribas Securities Corp. 0.36% 10/28/14 Open   1,509,000   1,512,244  
BNP Paribas Securities Corp. 0.36% 10/28/14 Open   2,407,000   2,412,175  
BNP Paribas Securities Corp. 0.36% 10/28/14 Open   967,000   969,079  
BNP Paribas Securities Corp. 0.39% 10/31/14 Open   2,147,000   2,151,954  
BNP Paribas Securities Corp. 0.39% 10/31/14 Open   821,000   822,894  
BNP Paribas Securities Corp. 0.39% 10/31/14 Open   1,904,000   1,908,393  
Barclays Capital, Inc. 0.35% 11/10/14 Open   1,076,000   1,078,124  
Barclays Capital, Inc. 0.35% 11/10/14 Open   1,032,000   1,034,037  
Barclays Capital, Inc. 0.35% 11/10/14 Open   4,796,000   4,805,465  
BNP Paribas Securities Corp. 0.14% 11/10/14 Open   854,000   854,674  
BNP Paribas Securities Corp. 0.14% 11/10/14 Open   1,353,000   1,354,068  
BNP Paribas Securities Corp. 0.14% 11/10/14 Open   6,547,000   6,552,168  
BNP Paribas Securities Corp. 0.14% 11/10/14 Open   1,358,000   1,359,072  
BNP Paribas Securities Corp. 0.35% 11/10/14 Open   2,679,000   2,684,287  

 

BLACKROCK CORE BOND TRUSTMAY 31, 201516
 
Schedule of Investments (continued) BlackRock Core Bond Trust (BHK)
   


As of May 31, 2015, reverse repurchase agreements outstanding were as follows (continued):
 
 

 

Counterparty Interest
Rate
Trade
Date
Maturity
Date1
  Face Value   Face Value
Including
Accrued
Interest
 
BNP Paribas Securities Corp. 0.35% 11/10/14 Open $ 1,564,000 $ 1,567,087  
BNP Paribas Securities Corp. 0.35% 11/10/14 Open   4,083,000   4,091,058  
BNP Paribas Securities Corp. 0.35% 11/10/14 Open   2,131,000   2,135,206  
BNP Paribas Securities Corp. 0.35% 11/10/14 Open   1,754,000   1,757,462  
BNP Paribas Securities Corp. 0.35% 11/10/14 Open   4,769,000   4,778,412  
BNP Paribas Securities Corp. 0.35% 11/10/14 Open   1,211,000   1,213,390  
BNP Paribas Securities Corp. 0.35% 11/10/14 Open   1,147,000   1,149,264  
BNP Paribas Securities Corp. 0.35% 11/10/14 Open   2,914,000   2,919,751  
BNP Paribas Securities Corp. 0.35% 11/10/14 Open   1,009,000   1,010,991  
BNP Paribas Securities Corp. 0.35% 11/10/14 Open   488,000   488,963  
BNP Paribas Securities Corp. 0.35% 11/10/14 Open   2,818,000   2,823,562  
HSBC Securities (USA), Inc. 0.40% 11/10/14 Open   4,289,500   4,299,175  
HSBC Securities (USA), Inc. 0.40% 11/10/14 Open   7,682,500   7,699,828  
HSBC Securities (USA), Inc. 0.40% 11/10/14 Open   4,169,900   4,179,305  
HSBC Securities (USA), Inc. 0.40% 11/10/14 Open   4,358,094   4,367,924  
HSBC Securities (USA), Inc. 0.40% 11/10/14 Open   7,707,000   7,724,384  
UBS Securities LLC 0.34% 11/10/14 Open   176,000   176,337  
UBS Securities LLC 0.34% 11/10/14 Open   1,206,000   1,208,312  
UBS Securities LLC 0.34% 11/10/14 Open   1,409,000   1,411,701  
UBS Securities LLC 0.34% 11/10/14 Open   1,550,000   1,552,972  
UBS Securities LLC 0.34% 11/10/14 Open   1,447,000   1,449,774  
UBS Securities LLC 0.34% 11/10/14 Open   3,614,000   3,620,929  
UBS Securities LLC 0.34% 11/10/14 Open   4,265,000   4,273,177  
UBS Securities LLC 0.34% 11/10/14 Open   1,369,000   1,371,625  
UBS Securities LLC 0.34% 11/10/14 Open   1,360,000   1,362,607  
UBS Securities LLC 0.34% 11/10/14 Open   942,000   943,806  
UBS Securities LLC 0.34% 11/10/14 Open   1,212,000   1,214,324  
Credit Suisse Securities (USA) LLC 0.40% 12/19/14 Open   1,600,000   1,602,862  
Credit Suisse Securities (USA) LLC 0.40% 12/19/14 Open   1,817,000   1,820,250  
Credit Suisse Securities (USA) LLC 0.40% 12/19/14 Open   1,736,000   1,739,106  
Credit Suisse Securities (USA) LLC 0.40% 12/19/14 Open   1,961,000   1,964,508  
Credit Suisse Securities (USA) LLC 0.40% 12/19/14 Open   1,900,000   1,903,399  
Credit Suisse Securities (USA) LLC 0.40% 12/19/14 Open   1,701,000   1,704,043  
Credit Suisse Securities (USA) LLC 0.40% 12/19/14 Open   2,080,000   2,083,721  
Credit Suisse Securities (USA) LLC 0.50% 12/19/14 Open   1,637,000   1,640,661  
Barclays Capital, Inc. (1.75%) 3/4/15 Open   1,654,000   1,646,925  
Deutsche Bank Securities, Inc. 0.16% 3/5/15 Open   6,384,775   6,387,244  
RBC Capital Markets, LLC 0.39% 3/31/15 Open   3,262,500   3,264,691  
RBC Capital Markets, LLC 0.39% 4/23/15 Open   1,408,050   1,408,645  
RBC Capital Markets, LLC 0.39% 4/23/15 Open   2,137,125   2,138,028  
BNP Paribas Securities Corp. 0.40% 4/30/15 Open   1,749,325   1,749,947  
RBC Capital Markets, LLC 0.39% 5/5/15 Open   1,875,000   1,875,548  
RBC Capital Markets, LLC 0.39% 5/5/15 Open   1,598,625   1,599,093  
BNP Paribas Securities Corp. 0.16% 5/7/15 Open   67,112,500   67,119,659  
Credit Suisse Securities (USA) LLC 0.40% 5/7/15 Open   966,625   966,894  
Credit Suisse Securities (USA) LLC 0.40% 5/7/15 Open   1,177,913   1,178,240  
Credit Suisse Securities (USA) LLC 0.40% 5/7/15 Open   1,503,125   1,503,543  
Credit Suisse Securities (USA) LLC 0.40% 5/7/15 Open   1,521,231   1,521,654  
HSBC Securities (USA), Inc. 0.25% 5/12/15 6/11/15   39,711,000   39,716,240  
HSBC Securities (USA), Inc. 0.40% 5/14/15 Open   2,301,750   2,302,210  

 

BLACKROCK CORE BOND TRUSTMAY 31, 201517
 
Schedule of Investments (continued) BlackRock Core Bond Trust (BHK)
   


As of May 31, 2015, reverse repurchase agreements outstanding were as follows (concluded):
 
 

 

Counterparty Interest
Rate
Trade
Date
Maturity
Date1
  Face Value   Face Value
Including
Accrued
Interest
 
HSBC Securities (USA), Inc. 0.40% 5/14/15 Open $ 2,895,000 $ 2,895,579  
HSBC Securities (USA), Inc. 0.40% 5/14/15 Open   752,963   753,113  
HSBC Securities (USA), Inc. 0.40% 5/14/15 Open   4,448,000   4,448,890  
HSBC Securities (USA), Inc. 0.40% 5/14/15 Open   3,776,250   3,777,005  
Credit Suisse Securities (USA) LLC 0.12% 5/15/15 Open   20,150,000   20,151,142  
RBC Capital Markets, LLC 0.39% 5/15/15 Open   1,827,000   1,827,336  
RBC Capital Markets, LLC 0.39% 5/15/15 Open   2,191,875   2,192,279  
Morgan Stanley & Co. LLC 0.30% 5/19/15 7/20/15   9,984,000   9,984,998  
RBC Capital Markets, LLC 0.39% 5/21/15 Open   2,041,425   2,041,668  
RBC Capital Markets, LLC 0.39% 5/21/15 Open   1,932,760   1,932,990  
RBC Capital Markets, LLC 0.39% 5/21/15 Open   1,995,000   1,995,238  
RBC Capital Markets, LLC 0.39% 5/21/15 Open   2,295,000   2,295,273  
RBC Capital Markets, LLC 0.39% 5/21/15 Open   1,984,650   1,984,887  
RBC Capital Markets, LLC 0.39% 5/22/15 Open   1,827,000   1,827,198  
RBC Capital Markets, LLC 0.39% 5/22/15 Open   1,653,750   1,653,929  
RBC Capital Markets, LLC 0.39% 5/22/15 Open   2,097,900   2,098,127  
RBC Capital Markets, LLC 0.39% 5/22/15 Open   1,540,000   1,540,167  
BNP Paribas Securities Corp. 0.42% 5/29/15 Open   2,879,000   2,879,101  
Total       $ 362,723,360 $ 363,134,805  
   

 

1 Certain agreements have no stated maturity and can be terminated by either party at any time.
   

 



As of May 31, 2015, financial futures contracts outstanding were as follows:

 

  Contracts
Long/
(Short)
  Issue  Exchange  Expiration  Notional
Value
  Unrealized
Appreciation
(Depreciation)
 250   90 Day Euro Future  ICE Futures Europe   June 2015    USD    47,485,476   $5,575 
 (135)   10-Year U.S. Treasury Note  Chicago Board of Trade   September 2015    USD    17,237,813    (61,334)
 (440)   2-Year U.S. Treasury Note  Chicago Board of Trade   September 2015    USD    96,298,125    (98,264)
 62   5-Year U.S. Treasury Note  Chicago Board of Trade   September 2015    USD    7,423,047    37,128 
 (250)   90 Day Euro Future  ICE Futures Europe   September 2015    USD    47,466,371    (20,522)
 (5)   Long U.S. Treasury Bond  Chicago Board of Trade   September 2015    USD    778,125    (9,866)
 430   Ultra Long U.S. Treasury Bond  Chicago Board of Trade   September 2015    USD    68,920,937    573,658 
 (110)   90-Day Euro-Dollar  Chicago Mercantile   March 2016    USD    27,295,125    (84,052)
 100   90 Day Euro Future  Chicago Mercantile   December 2016    USD    24,660,000    93,414 
 (100)   90 Day Euro Future  Chicago Mercantile   December 2017    USD    24,518,750    (113,253)
 Total                            $ 322,484 

 

As of May 31, 2015, forward foreign currency contracts outstanding were as follows:

 

Currency
Purchased
  Currency
Sold
Counterparty Settlement
Date
  Unrealized
Appreciation (Depreciation)
 
AUD 2,480,000   CAD 2,387,372 HSBC Bank PLC 6/10/15 $ (24,128)  
AUD 2,618,000   MXN 32,349,579 BNP Paribas S.A. 6/10/15   (98,772)  
AUD 2,512,000   NZD 2,680,133 JPMorgan Chase Bank N.A. 6/10/15   19,586  
CAD 2,406,223   AUD 2,480,000 Goldman Sachs International 6/10/15   39,283  
CAD 2,471,675   USD 2,025,000 BNP Paribas S.A. 6/10/15   (37,830)  
EUR 1,891,000   GBP 1,381,417 BNP Paribas S.A. 6/10/15   (34,135)  

 

BLACKROCK CORE BOND TRUSTMAY 31, 201518
 
Schedule of Investments (continued) BlackRock Core Bond Trust (BHK)
   
As of May 31, 2015, forward foreign currency contracts outstanding were as follows (concluded):  
 

 

Currency
Purchased
  Currency
Sold
  Counterparty  Settlement
Date
  Unrealized
Appreciation (Depreciation)
EUR   1,730,000   GBP   1,230,860   Citibank N.A.  6/10/15  $19,118 
GBP   1,355,471   EUR   1,891,000   Deutsche Bank AG  6/10/15   (5,519)
GBP   1,248,799   EUR   1,730,000   UBS AG  6/10/15   8,298 
GBP   1,314,000   NOK   15,153,822   Goldman Sachs International  6/10/15   58,665 
GBP   1,301,000   SEK   16,834,504   Bank of America N.A.  6/10/15   13,666 
GBP   1,200,000   SEK   15,473,226   Goldman Sachs International  6/10/15   18,982 
JPY   239,937,592   EUR   1,780,000   UBS AG  6/10/15   (21,864)
MXN   31,538,601   AUD   2,618,000   Deutsche Bank AG  6/10/15   46,139 
MXN   30,727,136   CAD   2,420,000   Goldman Sachs International  6/10/15   48,577 
NOK   15,397,568   GBP   1,314,000   BNP Paribas S.A.  6/10/15   (27,307)
NZD   2,608,421   AUD   2,512,000   Bank of America N.A.  6/10/15   (70,428)
NZD   2,698,654   AUD   2,520,000   Barclays Bank PLC  6/10/15   (12,569)
NZD   2,700,000   CAD   2,413,808   Bank of America N.A.  6/10/15   (26,428)
NZD   2,652,000   USD   2,011,659   BNP Paribas S.A.  6/10/15   (131,471)
NZD   2,652,000   USD   1,982,891   BNP Paribas S.A.  6/10/15   (102,703)
NZD   2,670,000   USD   1,953,826   HSBC Bank PLC  6/10/15   (60,876)
SEK   16,273,861   GBP   1,250,000   JPMorgan Chase Bank N.A.  6/10/15   (1,485)
USD   1,974,469   AUD   2,520,000   Citibank N.A.  6/10/15   48,636 
USD   2,025,000   CAD   2,434,983   Goldman Sachs International  6/10/15   67,330 
USD   2,050,167   NZD   2,708,000   Bank of America N.A.  6/10/15   130,277 
USD   1,966,946   NZD   2,670,000   Bank of America N.A.  6/10/15   73,997 
USD   1,988,819   NZD   2,596,000   UBS AG  6/10/15   148,333 
USD   2,000,000   SEK   17,059,672   Bank of America N.A.  7/08/15   (2,175)
EUR   26,000   USD   29,002   State Street Bank and Trust Co.  7/21/15   (428)
USD   2,860,188   EUR   2,657,500   UBS AG  7/21/15   (60,492)
USD   15,885,756   GBP   10,744,000   Barclays Bank PLC  7/21/15   (529,551)
Total                     $(507,274)
                         

 

As of May 31, 2015, OTC interest rate swaptions purchased were as follows:  
 

 

  Description Counterparty Put/
Call
Exercise
Rate
Pay/Receive
Exercise Rate
Floating Rate
Index
Expiration
Date
Notional
Amount
(000)
Market
Value
 
  5-Year Interest Rate Swap Citibank N.A. Call 1.75% Pay 3-Month LIBOR 2/12/16 USD 6,000 $ 57,158  
  5-Year Interest Rate Swap Citibank N.A. Call 1.75% Pay 3-Month LIBOR 3/23/16 USD 1,800   17,446  
  10-Year Interest Rate Swap JPMorgan Chase Bank N.A. Call 2.25% Pay 3-Month LIBOR 2/13/17 USD 3,000   81,622  
  10-Year Interest Rate Swap JPMorgan Chase Bank N.A. Call 2.25% Pay 3-Month LIBOR 2/17/17 USD 3,000   81,641  
  10-Year Interest Rate Swap JPMorgan Chase Bank N.A. Put 4.00% Receive 3-Month LIBOR 2/03/22 USD 5,000   175,225  
  10-Year Interest Rate Swap Bank of America N.A. Put 4.00% Receive 3-Month LIBOR 2/04/22 USD 5,000   175,216  
  10-Year Interest Rate Swap JPMorgan Chase Bank N.A. Put 4.00% Receive 3-Month LIBOR 2/11/22 USD 5,000   175,418  
  Total $ 763,726  
                           

 

As of May 31, 2015, OTC interest rate swaptions written were as follows:  
 

 

  Description Counterparty Put/
Call
Exercise
Rate
Pay/Receive
Exercise Rate
Floating Rate
Index
Expiration
Date
Notional
Amount
(000)
Market
Value
 
  10-Year Interest Rate Swap Citibank N.A. Call 2.00% Pay 3-Month LIBOR 8/20/15 USD 4,800 $ (30,403)  
  10-Year Interest Rate Swap Citibank N.A. Call 2.00% Pay 3-Month LIBOR 8/20/15 USD 4,800   (30,403)  

 

BLACKROCK CORE BOND TRUSTMAY 31, 201519
 
Schedule of Investments (continued) BlackRock Core Bond Trust (BHK)
   
As of May 31, 2015, OTC interest rate swaptions written were as follows (continued):  
 

 

  Description Counterparty Put/
Call
Exercise
Rate
Pay/Receive
Exercise Rate
Floating Rate
Index
Expiration
Date
Notional
Amount
(000)
Market
Value
 
  5-Year Interest Rate Swap Deutsche Bank AG Call 1.45% Pay 3-Month LIBOR 10/30/15 USD 36,500 $ (141,314)  
  10-Year Interest Rate Swap Deutsche Bank AG Call 2.79% Pay 3-month LIBOR 11/17/15 USD 27,000   (1,347,355)  
  10-Year Interest Rate Swap JPMorgan Chase Bank N.A. Call 2.40% Pay 3-Month LIBOR 12/21/15 USD 5,000   (131,294)  
  10-Year Interest Rate Swap Goldman Sachs Bank USA Call 1.60% Pay 3-Month LIBOR 1/20/16 USD 6,400   (29,790)  
  10-Year Interest Rate Swap BNP Paribas SA Call 1.55% Pay 3-Month LIBOR 1/21/16 USD 27,700   (113,477)  
  5-Year Interest Rate Swap JPMorgan Chase Bank N.A. Call 0.44% Pay 3-Month LIBOR 1/22/16 EUR 6,680   (43,150)  
  5-Year Interest Rate Swap Deutsche Bank AG Call 0.48% Pay 3-Month LIBOR 1/22/16 EUR 6,670   (51,261)  
  10-Year Interest Rate Swap Deutsche Bank AG Call 1.60% Pay 3-Month LIBOR 1/26/16 USD 6,300   (30,047)  
  5-Year Interest Rate Swap Citibank N.A. Call 1.40% Pay 3-Month LIBOR 2/12/16 USD 12,000   (51,720)  
  7-Year Interest Rate Swap Credit Suisse International Call 0.53% Pay 3-Month LIBOR 3/14/16 EUR 3,000   (22,136)  
  10-Year Interest Rate Swap Deutsche Bank AG Call 2.50% Pay 3-month LIBOR 3/17/16 USD 12,000   (390,936)  
  10-Year Interest Rate Swap Deutsche Bank AG Call 2.60% Pay 3-month LIBOR 3/17/16 USD 12,000   (454,509)  
  5-Year Interest Rate Swap Citibank N.A. Call 1.40% Pay 3-Month LIBOR 3/23/16 USD 3,600   (16,601)  
  10-Year Interest Rate Swap Credit Suisse International Call 1.75% Pay 3-Month LIBOR 1/09/17 USD 2,500   (32,946)  
  10-Year Interest Rate Swap HSBC Bank USA Call 1.75% Pay 3-Month LIBOR 1/17/17 USD 3,300   (43,880)  
  10-Year Interest Rate Swap JPMorgan Chase Bank N.A. Call 1.50% Pay 3-Month LIBOR 2/13/17 USD 4,500   (41,787)  
  10-Year Interest Rate Swap Deutsche Bank AG Call 1.90% Pay 3-Month LIBOR 2/13/17 USD 6,900   (117,661)  
  10-Year Interest Rate Swap JPMorgan Chase Bank N.A. Call 1.50% Pay 3-Month LIBOR 2/17/17 USD 4,500   (41,926)  
  10-Year Interest Rate Swap Deutsche Bank AG Call 2.10% Pay 3-Month LIBOR 3/06/17 USD 1,800   (40,870)  
  10-Year Interest Rate Swap JPMorgan Chase Bank N.A. Call 2.51% Pay 3-Month LIBOR 4/09/18 USD 2,400   (99,799)  
  10-Year Interest Rate Swap Deutsche Bank AG Put 2.79% Receive 3-month LIBOR 11/17/15 USD 27,000   (181,851)  
  10-Year Interest Rate Swap Deutsche Bank AG Put 3.60% Receive 3-month LIBOR 3/17/16 USD 12,000   (30,134)  
  5-Year Interest Rate Swap Citibank N.A. Put 2.10% Receive 3-Month LIBOR 8/20/15 USD 9,000   (17,087)  
  5-Year Interest Rate Swap Citibank N.A. Put 2.10% Receive 3-Month LIBOR 8/20/15 USD 9,000   (17,087)  
  10-Year Interest Rate Swap JPMorgan Chase Bank N.A. Put 2.60% Receive 3-Month LIBOR 9/23/15 USD 5,000   (34,314)  
  5-Year Interest Rate Swap Deutsche Bank AG Put 2.30% Receive 3-Month LIBOR 10/30/15 USD 36,500   (106,454)  
  10-Year Interest Rate Swap JPMorgan Chase Bank N.A. Put 2.70% Receive 3-Month LIBOR 12/21/15 USD 5,000   (53,500)  
  10-Year Interest Rate Swap Goldman Sachs Bank USA Put 2.60% Receive 3-Month LIBOR 1/20/16 USD 6,400   (99,739)  
  10-Year Interest Rate Swap BNP Paribas SA Put 2.55% Receive 3-Month LIBOR 1/21/16 USD 27,700   (481,632)  
  5-Year Interest Rate Swap JPMorgan Chase Bank N.A. Put 0.44% Receive 3-Month LIBOR 1/22/16 EUR 6,680   (53,510)  
  5-Year Interest Rate Swap Barclays Bank PLC Put 0.48% Receive 3-Month LIBOR 1/22/16 EUR 6,650   (46,835)  
  5-Year Interest Rate Swap Deutsche Bank AG Put 0.48% Receive 3-Month LIBOR 1/22/16 EUR 6,670   (46,976)  
  5-Year Interest Rate Swap Barclays Bank PLC Put 0.55% Receive 3-Month LIBOR 1/22/16 EUR 10,000   (55,974)  
  10-Year Interest Rate Swap Deutsche Bank AG Put 2.60% Receive 3-Month LIBOR 1/26/16 USD 6,300   (100,833)  
  7-Year Interest Rate Swap Goldman Sachs Bank USA Put 0.70% Receive 3-Month LIBOR 3/10/16 EUR 3,000   (44,004)  
  7-Year Interest Rate Swap Credit Suisse International Put 0.53% Receive 3-Month LIBOR 3/14/16 EUR 3,000   (64,965)  
  10-Year Interest Rate Swap JPMorgan Chase Bank N.A. Put 2.90% Receive 3-Month LIBOR 3/17/16 USD 12,000   (132,568)  

 

BLACKROCK CORE BOND TRUSTMAY 31, 201520
 
Schedule of Investments (continued) BlackRock Core Bond Trust (BHK)
   
As of May 31, 2015, OTC interest rate swaptions written were as follows (concluded):  
 

 

  Description Counterparty Put/
Call
Exercise
Rate
Pay/Receive
Exercise Rate
Floating Rate
Index
Expiration
Date
Notional
Amount
(000)
Market
Value
 
  10-Year Interest Rate Swap Citibank N.A. Put 2.70% Receive 3-Month LIBOR 3/21/16 USD 5,000 $ (82,411)  
  5-Year Interest Rate Swap Citibank N.A. Put 0.50% Receive 3-Month LIBOR 3/21/16 EUR 5,000   (41,935)  
  5-Year Interest Rate Swap JPMorgan Chase Bank N.A. Put 0.60% Receive 3-Month LIBOR 4/26/16 EUR 15,000   (109,908)  
  10-Year Interest Rate Swap Credit Suisse International Put 2.75% Receive 3-Month LIBOR 1/09/17 USD 2,500   (78,796)  
  10-Year Interest Rate Swap BNP Paribas SA Put 3.50% Receive 3-Month LIBOR 1/09/17 USD 9,300   (108,530)  
  10-Year Interest Rate Swap Barclays Bank PLC Put 3.50% Receive 3-Month LIBOR 1/09/17 USD 4,400   (51,348)  
  10-Year Interest Rate Swap JPMorgan Chase Bank N.A. Put 3.55% Receive 3-Month LIBOR 1/09/17 USD 15,000   (162,987)  
  10-Year Interest Rate Swap Goldman Sachs Bank USA Put 3.60% Receive 3-Month LIBOR 1/09/17 USD 4,400   (44,496)  
  10-Year Interest Rate Swap JPMorgan Chase Bank N.A. Put 2.70% Receive 3-Month LIBOR 1/12/17 USD 1,000   (33,674)  
  10-Year Interest Rate Swap HSBC Bank USA Put 2.75% Receive 3-Month LIBOR 1/17/17 USD 3,300   (105,339)  
  10-Year Interest Rate Swap Barclays Bank PLC Put 2.75% Receive 3-Month LIBOR 1/30/17 USD 6,800   (221,438)  
  10-Year Interest Rate Swap Deutsche Bank AG Put 2.75% Receive 3-Month LIBOR 1/30/17 USD 4,000   (130,258)  
  10-Year Interest Rate Swap Deutsche Bank AG Put 2.75% Receive 3-Month LIBOR 1/30/17 USD 2,000   (65,129)  
  10-Year Interest Rate Swap Deutsche Bank AG Put 2.75% Receive 3-Month LIBOR 1/30/17 USD 2,000   (65,129)  
  10-Year Interest Rate Swap Deutsche Bank AG Put 2.70% Receive 3-Month LIBOR 2/02/17 USD 2,000   (69,463)  
  10-Year Interest Rate Swap Deutsche Bank AG Put 2.90% Receive 3-Month LIBOR 2/13/17 USD 6,900   (191,974)  
  10-Year Interest Rate Swap JPMorgan Chase Bank N.A. Put 3.50% Receive 3-Month LIBOR 2/13/17 USD 3,000   (38,309)  
  10-Year Interest Rate Swap JPMorgan Chase Bank N.A. Put 3.50% Receive 3-Month LIBOR 2/17/17 USD 3,000   (38,783)  
  10-Year Interest Rate Swap Deutsche Bank AG Put 3.10% Receive 3-Month LIBOR 3/06/17 USD 1,800   (40,653)  
  10-Year Interest Rate Swap Deutsche Bank AG Put 3.70% Receive 3-Month LIBOR 1/08/18 USD 5,000   (92,364)  
  10-Year Interest Rate Swap JPMorgan Chase Bank N.A. Put 2.51% Receive 3-Month LIBOR 4/09/18 USD 2,400   (146,834)  
  10-Year Interest Rate Swap JPMorgan Chase Bank N.A. Put 6.00% Receive 3-Month LIBOR 2/03/22 USD 10,000   (105,858)  
  10-Year Interest Rate Swap Bank of America N.A. Put 6.00% Receive 3-Month LIBOR 2/04/22 USD 10,000   (105,880)  
  10-Year Interest Rate Swap JPMorgan Chase Bank N.A. Put 6.00% Receive 3-Month LIBOR 2/11/22 USD 10,000   (106,210)  
  Total $ (7,108,434)  
   

 

As of May 31, 2015, centrally cleared interest rate swaps outstanding were as follows:  
 

 

Fixed
Rate
  Floating
Rate
  Clearinghouse  Effective
Date
  Expiration
Date
  Notional
Amount
(000)
  Unrealized
Appreciation
(Depreciation)
0.56%1  3-Month LIBOR  Chicago Mercantile  N/A  6/25/15  USD   41,800   $(4,929)
1.68%1  3-Month LIBOR  Chicago Mercantile  10/05/152  11/30/19  USD   54,400    (143,727)
2.04%1  3-Month LIBOR  Chicago Mercantile  6/30/152  12/31/21  USD   3,100    (31,802)
2.09%1  3-Month LIBOR  Chicago Mercantile  6/30/152  12/31/21  USD   3,100    (32,937)
2.03%1  3-Month LIBOR  Chicago Mercantile  9/30/152  4/30/22  USD   9,800    (27,497)
2.23%3  3-Month LIBOR  Chicago Mercantile  1/30/172  1/30/25  USD   2,500    10,955 
1.96%3  3-Month LIBOR  Chicago Mercantile  N/A  3/25/25  USD   1,200    (23,600)
2.02%3  3-Month LIBOR  Chicago Mercantile  N/A  3/25/25  USD   4,000    (55,820)
2.27%3  3-Month LIBOR  Chicago Mercantile  N/A  5/26/25  USD   2,000    15,072 
2.50%1  3-Month LIBOR  Chicago Mercantile  N/A  5/27/25  USD   24,000    (484,445)

 

BLACKROCK CORE BOND TRUSTMAY 31, 201521
 
Schedule of Investments (continued) BlackRock Core Bond Trust (BHK)
   
As of May 31, 2015, centrally cleared interest rate swaps outstanding were as follows (concluded):  
 

 

Fixed
Rate
  Floating
Rate
  Clearinghouse  Effective
Date
  Expiration
Date
  Notional
Amount
(000)
  Unrealized
Appreciation
(Depreciation)
2.26%3  3-Month LIBOR  Chicago Mercantile  N/A  5/29/25  USD   3,000   $21,674 
2.23%3  3-Month LIBOR  Chicago Mercantile  6/01/152  6/01/25  USD   2,500    11,185 
2.35%1  3-Month LIBOR  Chicago Mercantile  6/30/152  2/15/41  USD   1,600    78,453 
2.35%1  3-Month LIBOR  Chicago Mercantile  6/30/152  2/15/41  USD   1,700    82,319 
2.62%1  3-Month LIBOR  Chicago Mercantile  6/30/152  4/15/41  USD   3,000    (12,937)
2.38%1  3-Month LIBOR  Chicago Mercantile  N/A  4/24/45  USD   4,770    239,203 
2.39%1  3-Month LIBOR  Chicago Mercantile  N/A  4/24/45  USD   4,780    (32,139)
2.42%1  3-Month LIBOR  Chicago Mercantile  N/A  4/24/45  USD   4,890    417,028 
2.42%1  3-Month LIBOR  Chicago Mercantile  N/A  4/24/45  USD   4,560    186,087 
Total                         $ 212,143  

 

1  Trust pays the fixed rate and receives the floating rate.
2  Forward swap.
3  Trust pays the floating rate and receives the fixed rate.

 

 

As of May 31, 2015, OTC credit default swaps – buy protection outstanding were as follows:
 

 

  Issuer   Pay
Fixed
Rate
  Counterparty   Expiration
Date
  Notional
Amount
(000)

Value
Premiums
Paid
Unrealized
Depreciation
  Radian Group, Inc.   5.00%   Citibank N.A.   6/20/15   USD   2,800 $ (7,097) $ 1,791 $ (8,888)
  The New York Times Co.   1.00%   Barclays Bank PLC   12/20/16   USD   3,600   (44,485)   78,385   (122,870)
  Westpac Banking Corp.   1.00%   Deutsche Bank AG   9/20/17   USD   1   (9)   7   (16)
  Australia & New Zealand Banking Group Ltd.   1.00%   Deutsche Bank AG   9/20/17   USD   1   (9)   7   (16)
  Total $ (51,600) $ 80,190 $ (131,790)
                                     

 

As of May 31, 2015, OTC credit default swaps – sold protection outstanding were as follows:
 

 

  Issuer   Receive
Fixed
Rate
  Counterparty   Expiration
Date
  Credit Rating4   Notional
Amount
(000)5
  Value   Premiums
Received
    Unrealized
Appreciation
  MetLife, Inc.   1.00%   Morgan Stanley Capital Services LLC   9/20/16   A-   USD   1,810 $ 19,365 $ (38,918) $ 58,282  
  MetLife, Inc.   1.00%   Deutsche Bank AG   9/20/16   A-   USD   1,460   15,620   (32,012)   47,632  
  MetLife, Inc.   1.00%   Morgan Stanley Capital Services LLC   9/20/16   A-   USD   550   5,884   (10,548)   16,432  
  MetLife, Inc.   1.00%   Goldman Sachs Bank USA   9/20/16   A-   USD   1,000   10,699   (21,340)   32,039  
  MetLife, Inc.   1.00%   Credit Suisse International   9/20/16   A-   USD   1,080   11,555   (25,896)   37,451  
  MetLife, Inc.   1.00%   Citibank N.A.   12/20/16   A-   USD   595   7,261   (13,495)   20,757  
  MetLife, Inc.   1.00%   Citibank N.A.   12/20/16   A-   USD   575   6,979   (14,220)   21,199  
  Total   $ 77,363 $ (156,429) $ 233,792  
                                                           

 

4 Using S&P’s rating of the issuer.
5 The maximum potential amount the Trust may pay should a negative credit event take place as defined under the terms of the agreement.

 

BLACKROCK CORE BOND TRUSTMAY 31, 201522
 
Schedule of Investments (continued) BlackRock Core Bond Trust (BHK)
   

 

As of May 31, 2015, OTC interest rate swaps outstanding were as follows:

 
 

 

  Fixed
Rate
  Floating
Rate
  Counterparty Effective
Date
Expiration
Date
  Notional
Amount
(000)

Value
Premiums
Paid
(Received)
 

Unrealized
Appreciation

(Depreciation)

 
  0.00%1   3-Month LIBOR   JPMorgan Chase Bank N.A. 3/23/172 3/23/19   USD   5,000 $ 11,914   $ 11,914  
  0.00%1   3-Month LIBOR   JPMorgan Chase Bank N.A. 9/26/172 9/26/19   USD   21,000   60,599     60,599  
  0.00%1   3-Month LIBOR   JPMorgan Chase Bank N.A. 1/30/172 1/30/25   USD   2,500   19,966     19,966  
  0.00%1   3-Month LIBOR   JPMorgan Chase Bank N.A. 5/19/252 5/19/35   USD   5,000   (19,860)     (19,860)  
  0.00%1   3-Month LIBOR   JPMorgan Chase Bank N.A. 5/21/252 5/21/35   USD   2,500   (978)     (978)  
  Total $ 71,641   $ 71,641  
                                               

 

1  Trust pays the floating rate and receives the fixed rate.
2  Forward swap.
 
For Trust compliance purposes, the Trust’s industry classifications refer to any one or more of the industry sub-classifications used by one or more widely recognized market indexes or rating group indexes, and/or as defined by investment advisor. These definitions may not apply for purposes of this report, which may combine such industry sub-classifications for reporting ease.

Fair Value Measurements — Various inputs are used in determining the fair value of investments and derivative financial instruments. These inputs to valuation techniques are categorized into a disclosure hierarchy consisting of three broad levels for financial reporting purposes. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). Accordingly, the degree of judgment exercised in determining fair value is greatest for instruments categorized in Level 3. The inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, for disclosure purposes, the fair value hierarchy classification is determined based on the lowest level input that is significant to the fair value measurement in its entirety. The categorization of a value determined for investments and derivative financial instruments is based on the pricing transparency of the investment and derivative financial instrument and is not necessarily an indication of the risks associated with investing in those securities. The three levels of the fair value hierarchy are as follows:

  Level 1 — unadjusted quoted prices in active markets/exchanges for identical assets or liabilities that the Trust has the ability to access
 
  Level 2 — other observable inputs (including, but not limited to, quoted prices for similar assets or liabilities in markets that are active, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the assets or liabilities (such as interest rates, yield curves, volatilities, prepayment speeds, loss severities, credit risks and default rates) or other market-corroborated inputs)
 
  Level 3 — unobservable inputs based on the best information available in the circumstances, to the extent observable inputs are not available (including the Trust's own assumptions used in determining the fair value of investments and derivative financial instruments)

 

BLACKROCK CORE BOND TRUSTMAY 31, 201523
 
Schedule of Investments (continued) BlackRock Core Bond Trust (BHK)
   
 
Changes in valuation techniques may result in transfers into or out of an assigned level within the disclosure hierarchy. In accordance with the Trust's policy, transfers between different levels of the fair value disclosure hierarchy are deemed to have occurred as of the beginning of the reporting period. For information about the Trust's policy regarding valuation of investments and derivative financial instruments, refer to the Trust's most recent financial statements as contained in its semi-annual report.

As of May 31, 2015, the following tables summarize the Trust's investments and derivative financial instruments categorized in the disclosure hierarchy:

 

 
  Level 1   Level 2   Level 3   Total  
 
Assets:    
Investments:  
Long-Term Investments:  
  Asset-Backed Securities   $ 94,220,472 $ 24,411,559 $ 118,632,031  
  Corporate Bonds     537,771,175   14,370,000   552,141,175  
  Foreign Agency Obligations     18,688,609     18,688,609  
  Municipal Bonds     24,471,331     24,471,331  
  Non-Agency Mortgage-Backed Securities     137,149,540   9   137,149,549  
  Preferred Securities $ 13,805,708   97,180,827     110,986,535  
  U.S. Government Sponsored Agency Securities     96,334,714   427   96,335,141  
  U.S. Treasury Obligations     88,048,091     88,048,091  
Short-Term Securities   141,176       141,176  
Options Purchased:                  
  Interest Rate Contracts     763,726     763,726  
 
Total $ 13,946,884 $ 1,094,628,485 $ 38,781,995 $ 1,147,357,364  
 
 
 
  Level 1   Level 2   Level 3   Total  
 
Derivative Financial Instruments 1  
Assets:  
Credit contracts   $ 233,792   $ 233,792  
Foreign currency exchange contracts     740,887     740,887  
Interest rate contracts $ 709,775   1,154,455     1,864,230  
Liabilities:  
Credit contracts     (131,790)     (131,790)  
Foreign currency exchange contracts     (1,248,161)     (1,248,161)  
Interest rate contracts $ (387,291)   (7,979,105)     (8,366,396)  
 
Total $ 322,484 $ (7,229,922)   $ (6,907,438)  
 
                                 

 

1 Derivative financial instruments are swaps, financial futures contracts, forward foreign currency exchange contracts and options written. Swaps, financial futures contracts and forward foreign currency exchange contracts are valued at the unrealized appreciation (depreciation) on the instrument and options written are shown at value.

 

BLACKROCK CORE BOND TRUSTMAY 31, 201524
 
Schedule of Investments (continued) BlackRock Core Bond Trust (BHK)
   
The Trust may hold assets and/or liabilities in which the fair value approximates the carrying amount or face amount, including accrued interest, for financial reporting purposes. As of May 31, 2015, such assets and/or liabilities are categorized within the disclosure hierarchy as follows:
  

 

 
  Level 1   Level 2   Level 3   Total  
 
Assets:    
  Cash $ 341,836     $ 341,836  
  Cash pledged as collateral for centrally cleared swaps   3,836,720       3,836,720  
  Cash pledged as collateral for OTC derivatives   6,780,000       6,780,000  
  Cash pledged for financial futures contracts   1,401,450       1,401,450  
  Cash pledged for reverse repurchase agreements   2,544,000           2,544,000  
  Foreign currency at value   2,218,754       2,218,754  
Liabilities:    
  Reverse repurchase agreements   $ (363,134,805)     (363,134,805)  
 
Total $ 17,122,760 $ (363,134,805)   $ (346,012,045)  
                                 

 

During the period ended May 31, 2015, there were no transfers between Level 1 and Level 2.

BLACKROCK CORE BOND TRUSTMAY 31, 201525
 
Schedule of Investments (concluded) BlackRock Core Bond Trust (BHK)
   
A reconciliation of Level 3 investments is presented when the Trust had a significant amount of Level 3 investments at the beginning and/or end of the period in relation to net assets. The following table is a reconciliation of Level 3 investments for which significant unobservable inputs were used in determining fair value:

 

 
  

 

 

Asset-Backed Securities

 

 

 

Corporate

Bonds

 

 

Non-Agency Mortgage-Backed Securities

  U.S. Government Sponsored Agency Securities 

 

 

 

Total

Assets:                         
Opening Balance, as of August 31, 2014  $6,755,839   $8,777,320           $15,533,159 
Transfers into Level 3                    
Transfers out of Level 31    (6,237,350)   (2,409,020)           (8,646,370)
Accrued discounts/premiums   (153,166)               (153,166)
Net realized gain   (250,916)   (1,548,146)  $4   $2    (1,799,056)
Net change in unrealized appreciation (depreciation)2    (250,487)   174,520    9    427    (75,531)
Purchases3   24,557,677    13,099,326            37,657,003 
Sales   (10,038)   (3,724,000)   (4)   (2)   (3,734,044)
                     

Closing Balance, as of

May 31, 2015

  $24,411,559   $14,370,000   $9   $427   $38,781,995 
Net change in unrealized appreciation (depreciation) on investments still held at May 31, 20152  $(250,487)  $(109,534)  $9   $427   $(359,585)
                          
                          

 

1 As of August 31, 2014, the Trust used significant unobservable inputs in determining the value of certain investments. As of May 31, 2015, the Trust used observable inputs in determining the value of the same investments. As a result, investments with a beginning of period value of $8,676,370 transferred from Level 3 to Level 2 in the disclosure hierarchy.
2 Any difference between net change in unrealized appreciation (depreciation) and net change in unrealized appreciation (depreciation) on investments held as of May 31, 2015 is generally due to investments no longer held or categorized as Level 3 at period end.
3 Includes investments acquired in the reorganization.

 

Certain of the Trust’s investments that are categorized as Level 3 were valued utilizing third party pricing information without adjustment. Such valuations are based on unobservable inputs. A significant change in third party information could results in a significantly lower or higher value of such Level 3 instruments.

 

BLACKROCK CORE BOND TRUSTMAY 31, 201526
 
Item 2 –Controls and Procedures
2(a) –The registrant's principal executive and principal financial officers, or persons performing similar functions, have concluded that the registrant's disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940, as amended (the ″1940 Act″)) are effective as of a date within 90 days of the filing of this report based on the evaluation of these controls and procedures required by Rule 30a-3(b) under the 1940 Act and Rule 13a-15(b) under the Securities Exchange Act of 1934, as amended.
2(b) –There were no changes in the registrant's internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 Act) that occurred during the registrant's last fiscal quarter that have materially affected, or are reasonably likely to materially affect, the registrant's internal control over financial reporting.
Item 3 –Exhibits

Certifications – Attached hereto

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

BlackRock Core Bond Trust

By:/s/ John M. Perlowski

John M. Perlowski

Chief Executive Officer (principal executive officer) of

BlackRock Core Bond Trust

Date: July 23, 2015

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

By:/s/ John M. Perlowski

John M. Perlowski

Chief Executive Officer (principal executive officer) of

BlackRock Core Bond Trust

Date: July 23, 2015

By:/s/ Neal J. Andrews

Neal J. Andrews

Chief Financial Officer (principal financial officer) of

BlackRock Core Bond Trust

Date: July 23, 2015