UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                    FORM 8-K


                 CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D)
                     OF THE SECURITIES EXCHANGE ACT OF 1934


        Date of Report (Date of Earliest Event Reported): October 17, 2002


                         WINTRUST FINANCIAL CORPORATION
             (Exact Name of Registrant as Specified in its Charter)


                         Commission File Number 0-21923



                Illinois                                    36-3873352
----------------------------------------------     -----------------------------
(State or other Jurisdiction of Incorporation)              (I.R.S. Employer
                                                            Identification No.)



                               727 North Bank Lane
                           Lake Forest, Illinois 60045
             -------------------------------------------------------
                    (Address of Principal Executive Offices)


                                 (847) 615-4096
      ---------------------------------------------------------------------
              (Registrant's Telephone Number, Including Area Code)





ITEM 5.  OTHER EVENTS.

In  November  2002,   Wintrust  Financial   Corporation  issued  its  letter  to
shareholders  related to the third quarter 2002,  which is attached hereto as an
Exhibit. On October 17, 2002, Wintrust Financial  Corporation announced earnings
for the third  quarter of 2002.  The  Company's  press  release  related to this
announcement is attached as part of the aforementioned letter to shareholders.



ITEM 7.  FINANCIAL STATEMENTS AND EXHIBITS.

(c)      Exhibit

Exhibit  99.1 - Letter to  Shareholders  including  the earnings  release  dated
October 17, 2002.


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                                   SIGNATURES

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


                         WINTRUST FINANCIAL CORPORATION
                                  (Registrant)



Date:  November 12, 2002                   /s/ David A. Dykstra
                                           --------------------
                                           Senior Executive Vice President
                                            and Chief Operating Officer


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