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): February 20, 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                (I.R.S. Employer Identification No.)
    of Incorporation)


                               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 AND REGULATION FD DISCLOSURE

On February 20, 2002  (effective  as of January 31,  2002),  Wintrust  Financial
Corporation ("Wintrust") completed 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").  Wayne Hummer Investments LLC is a registered  broker/dealer
and  investment  services firm that provides a full range of private  client and
brokerage  services to clients  located  primarily in the Midwest.  Wayne Hummer
Management is a registered investment adviser,  providing services to individual
accounts as well as four proprietary mutual funds managed by the firm.

Wintrust  paid $28  million for the Wayne  Hummer  Companies,  consisting  of $8
million  in cash,  508,495  shares of  Wintrust's  common  stock  (valued at $15
million) and $5 million of deferred cash payments. Wintrust could pay additional
contingent  consideration  upon the attainment of certain  performance  measures
over the next five years.

The Wayne Hummer  Companies are based in Chicago,  Illinois and have seventy-one
years of investment  experience.  The acquisition of the Wayne Hummer  Companies
will  augment  and  diversify  Wintrust's  revenue  stream by  adding  brokerage
services  to its fee based  revenues  as well as  offering  traditional  banking
products to the  customers of the Wayne Hummer  Companies,  thereby  providing a
more  comprehensive  menu of financial products and services to the customers of
Wintrust and the Wayne Hummer Companies.



ITEM 7.  FINANCIAL STATEMENTS AND EXHIBITS.

(c)      Exhibit

February  20,  2002 Press  Release - Wintrust  Financial  Corporation  Announces
Closing  of  Acquisition  of  Wayne  Hummer  Investments  LLC and  Wayne  Hummer
Management Company.


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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: February 22, 2002                        /s/ David A. Dykstra
                                               --------------------
                                               Executive Vice President
                                               & Chief Financial Officer


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