Wintrust Financial Corporation
                727 North Bank Lane, Lake Forest, Illinois 60045


FOR IMMEDIATE RELEASE
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February 20, 2002

FOR MORE INFORMATION CONTACT:
Edward J. Wehmer, President/CEO - Wintrust Financial Corporation, (847) 615-4096
David A. Dykstra, CFO - Wintrust Financial Corporation, (847) 615-4096
Raymond L. Kratzer, Managing Principal - Wayne Hummer Investments LLC,
(800) 621-4477

               WINTRUST FINANCIAL CORPORATION ANNOUNCES CLOSING OF
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                ACQUISITION OF WAYNE HUMMER INVESTMENTS LLC AND
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                        WAYNE HUMMER MANAGEMENT COMPANY
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         LAKE  FOREST,  ILLINOIS -  Wintrust  Financial  Corporation  (Wintrust)
(Nasdaq:  WTFC)  announced  today the  completion  of its  previously  announced
pending   acquisition  of  100%  of  the  ownership  interest  of  Wayne  Hummer
Investments  LLC, Wayne Hummer  Management  Company and Focused  Investments LLC
(collectively  the "Wayne  Hummer  Companies").  The Wayne Hummer  Companies are
based in Chicago,  Illinois  and have  seventy-one  years'  history of providing
financial services. Interestingly,  Wayne Hummer Investments was founded exactly
seventy-one  years ago today,  on February 20, 1931. The Wayne Hummer brand name
is well known and respected in the Chicago metropolitan area and its client base
is nationwide.  In fact,  Wayne Hummer  Investments is the oldest brokerage firm
headquartered  in Chicago that has  continuously  operated  using the same brand
name.  Accordingly,  Wintrust  intends  to use  the  Wayne  Hummer  name  in its
brokerage, trust and asset management operations.

         Edward  J.  Wehmer,  President  and CEO of  Wintrust,  and  Raymond  L.
Kratzer,  Wayne Hummer  Investment's  Managing  Principal,  indicated that "This
transaction is a win-win  situation for both companies and more  importantly for
our customers.  In both firms,  the clients'  interests always come first. As we
have worked together since announcing the transaction,  we have become even more
convinced  about the  positive  impact  this  merger  will have on the  combined
organization."

         The  purchase  price of $28  million  consists  of $8  million of cash,
508,495  shares of  Wintrust's  common  stock and $5  million of  deferred  cash
payments to be made over a three-year  period  subsequent  to the closing  date.
Wintrust could pay additional  contingent  considerations upon the attainment of
certain  performance  objectives over the next five years.  The shares issued in
the transaction will not be registered under the Securities Act of 1933 and will
be  restricted  until

                                     - 1 -

a  resale  registration  statement  is  filed  and  declared  effective  by  the
Securities  and Exchange  Commission  that is expected to be completed  shortly.
Additionally,  the Wayne Hummer mutual fund shareholders are required to vote on
the continuation of the investment advisory contracts after the closing.

         The transaction is expected to be slightly accretive to Wintrust's 2002
earnings.  Additional  positive  impact should be experienced to the extent that
amounts currently invested in the money market mutual funds are transferred into
bank deposits and invested in earning assets at Wintrust banks.

         Wintrust is a $2.7 billion asset financial holding company whose common
stock is traded on the Nasdaq Stock  Market(R).  In addition to the Wayne Hummer
Companies,  Wintrust  operates  seven  community  banks and three other non-bank
subsidiaries.  Its seven suburban Chicago community bank  subsidiaries,  each of
which was founded as a de novo bank  beginning in December  1991, are located in
high income retail markets -- Lake Forest Bank and Trust Company,  Hinsdale Bank
and Trust  Company,  North Shore  Community  Bank and Trust Company in Wilmette,
Libertyville Bank and Trust Company,  Barrington Bank and Trust Company, Crystal
Lake Bank and Trust Company and  Northbrook  Bank and Trust  Company.  The banks
also operate facilities in Lake Bluff, Highwood,  Glencoe,  Winnetka,  Clarendon
Hills, Western Springs, Skokie, Wauconda, McHenry and Hoffman Estates, Illinois.
Additionally,  Wintrust  operates three non-bank  subsidiaries.  First Insurance
Funding  Corporation,  one of the largest  commercial  insurance premium finance
companies  operating in the United  States,  serves  commercial  loan  customers
throughout  the  country.  Wintrust  Asset  Management  Company,  N.A.,  a trust
subsidiary,  allows Wintrust to serve  customers'  trust and investment needs at
each banking location.  Tricom,  Inc. provides  short-term  accounts  receivable
financing and  value-added  out-sourced  administrative  services,  such as data
processing  of  payrolls,  billing and cash  management  services,  to temporary
staffing  service  clients  located  throughout  the United  States.  Currently,
Wintrust  operates  a total  of 30  banking  offices  and is in the  process  of
constructing  several additional banking  facilities.  All of Wintrust's banking
subsidiaries are locally managed with large local boards of directors.

                           Forward-Looking Information
                           ---------------------------

         This  press  release  contains  forward-looking  statements  within the
meaning of the Private Securities  Litigation Reform Act of 1995 relating to the
integration  of the Wayne Hummer  Companies with  Wintrust,  the  combination of
their businesses and projected  revenue,  as well as profitability  and earnings
outlook.  Actual  results could differ  materially  from those  addressed in the
forward-looking   statements   due  to  factors  such  as  changes  in  economic
conditions,

                                     - 2 -

unanticipated   changes  in  interest  rates  that  negatively   impact  growth,
competition and the related pricing of brokerage and asset management  products,
future  events  that may cause  unforeseen  losses  on margin or other  customer
advances,  slower  than  anticipated  development  and  growth  of WHI and  WHMC
business  or  unanticipated  business  declines,   unforeseen   difficulties  in
integrating the acquisition or higher than expected  operational costs,  failure
to obtain  mutual fund  shareholder  approval of  investment  advisory  contract
continuation,  difficulties  in effecting a transfer of the money market  mutual
funds into bank deposit products, unforeseen changes in the securities and asset
management  industry,  difficulties in adapting  successfully  to  technological
changes as needed to compete effectively in the marketplace,  and the ability to
attract  and  retain  experienced  key  management.  Therefore,  there can be no
assurances that future actual results will  correspond to these  forward-looking
statements.


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