UNITED STATES

                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                   FORM 10-Q/A

                QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934

                  FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2002
                         Commission File Number 0-21923

                         WINTRUST FINANCIAL CORPORATION
             (Exact name of registrant as specified in its charter)

              Illinois                                   36-3873352
--------------------------------------------------------------------------------
(State of incorporation or organization)    (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)

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months (or such shorter period that the registrant was required
to file such reports), and (2) has been subject to such filing requirements for
the past 90 days. Yes X No ___

Indicate the number of shares outstanding of each of issuer's class of common
stock, as of the last practicable date.

Common Stock - no par value, 15,750,605 shares, as of May 29, 2002.





                                EXPLANATORY NOTE

         This Amendment No. 1 on Form 10-Q/A is being filed solely to file
certain additional exhibits. The remaining portions of the Company's initial
Form 10-Q for the quarter ended March 31, 2002 filed with the SEC on May 15,
2002 are incorporated herein by reference.

                        PART I. -- FINANCIAL INFORMATION

ITEM 1. - ITEM 3.          Incorporated  herein by reference to the Company's
                           Form 10-Q for the quarter ended March 31, 2002, filed
                           with the SEC on May 15, 2002.

                          PART II. -- OTHER INFORMATION

ITEM 1. - ITEM 5.          Incorporated  herein by reference to the Company's
                           Form 10-Q for the quarter ended March 31, 2002, filed
                           with the SEC on May 15, 2002.

ITEM 6.                    Exhibits and Reports on Form 8-K

                           (a)      Exhibits

                           3.1      Amended and Restated Articles of
                                    Incorporation of Wintrust Financial
                                    Corporation (incorporated by reference to
                                    Exhibit 3.1 of the Company's Form S-1
                                    Registration Statement (No. 333-18699) filed
                                    with the Securities and Exchange Commission
                                    on December 24, 1996).

                           3.2      Statement of Resolution Establishing Series
                                    of Junior Serial Preferred Stock A of
                                    Wintrust Financial Corporation (incorporated
                                    by reference to Exhibit 3.2 of the Company's
                                    Form 10-K for the year ended December 31,
                                    1998).

                           3.3      Amended By-laws of Wintrust Financial
                                    Corporation (incorporated by reference to
                                    Exhibit 3(i) of the Company's Form 10-Q for
                                    the quarter ended June 30, 1998).

                           4.1      Rights Agreement between Wintrust Financial
                                    Corporation and Illinois Stock Transfer
                                    Company, as Rights Agent, dated July 28,
                                    1998 (incorporated by reference to Exhibit
                                    4.1 of the Company's Form 8-A Registration
                                    Statement (No. 000-21923) filed with the
                                    Securities Exchange Commission on August 28,
                                    1998).

                           4.2      Certain instruments defining the rights of
                                    holders of long-term debt of the Company and
                                    certain of its subsidiaries, none of which
                                    authorize a total amount of indebtedness in
                                    excess of 10% of the total assets of the
                                    Company and its subsidiaries on a
                                    consolidated basis, have not been filed as
                                    Exhibits. The Company hereby agrees to
                                    furnish a copy of any of these agreements to
                                    the Commission upon request.





                           10.1     Term Note ($500,000) and related Stock
                                    Pledge Agreement dated January 31, 2002 by
                                    and between David A. Dykstra (as borrower)
                                    and Wintrust Financial Corporation (as
                                    lender).

                           10.2     Second Amendment to Employment Agreement by
                                    and between Wintrust Financial Corporation
                                    and David A. Dykstra, dated January 31,
                                    2002.

                           (b)      Reports on Form 8-K

                                    o       Form 8-K report as of February 8,
                                            2002 was filed during the quarter
                                            and provided the Company's fourth
                                            quarter earnings release dated
                                            January 17, 2002 and included a copy
                                            of the Company's letter to
                                            shareholders mailed in February
                                            2002.

                                    o       Form 8-K report as of February 22,
                                            2002 was filed during the quarter
                                            and provided the Company's press
                                            release dated February 20, 2002
                                            announcing the consummation of the
                                            previously announced acquisition of
                                            Wayne Hummer Investments LLC
                                            (including its wholly-owned
                                            subsidiary, Focused Investments
                                            LLC,) and Wayne Hummer Management
                                            Company (collectively, the Wayne
                                            Hummer Companies).


                                       2



                                   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 CORPORATION
                                  (Registrant)

Date:   June 7, 2002                /s/ Edward J. Wehmer
                                    --------------------------------------------
                                    President & Chief Executive Officer

Date:   June 7, 2002                /s/ David A. Dykstra
                                    --------------------------------------------
                                    Senior Executive Vice President
                                    Chief Operating Officer & Chief Financial
                                    Officer (Principal Financial Officer)

Date:   June 7, 2002                /s/ David L. Stoehr
                                    --------------------------------------------
                                    Senior Vice President - Finance
                                    (Principal Accounting Officer)





                                  EXHIBIT INDEX
                                  -------------

3.1      Amended and Restated Articles of Incorporation of Wintrust Financial
         Corporation (incorporated by reference to Exhibit 3.1 of the Company's
         Form S-1 Registration Statement (No. 333-18699) filed with the
         Securities and Exchange Commission on December 24, 1996).

3.2      Statement of Resolution Establishing Series of Junior Serial Preferred
         Stock A of Wintrust Financial Corporation (incorporated by reference to
         Exhibit 3.2 of the Company's Form 10-K for the year ended December 31,
         1998).

3.3      Amended By-laws of Wintrust Financial Corporation (incorporated by
         reference to Exhibit 3(i) of the Company's Form 10-Q for the quarter
         ended June 30, 1998).

4.1      Rights Agreement between Wintrust Financial Corporation and Illinois
         Stock Transfer Company, as Rights Agent, dated July 28, 1998
         (incorporated by reference to Exhibit 4.1 of the Company's Form 8-A
         Registration Statement (No. 000-21923) filed with the Securities and
         Exchange Commission on August 28, 1998).

4.2      Certain instruments defining the rights of holders of long-term debt of
         the Company and certain of its subsidiaries, none of which authorize a
         total amount of indebtedness in excess of 10% of the total assets of
         the Company and its subsidiaries on a consolidated basis, have not been
         filed as Exhibits. The Company hereby agrees to furnish a copy of any
         of these agreements to the Commission upon request.

10.1     Term Note ($500,000) and related Stock Pledge Agreement dated January
         31, 2002 by and between David A. Dykstra (as borrower) and Wintrust
         Financial Corporation (as lender).

10.2     Second Amendment to Employment Agreement by and between Wintrust
         Financial Corporation and David A. Dykstra, dated January 31, 2002.