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




FOR IMMEDIATE RELEASE
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December 26, 2001


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 PLANS TO
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                 ACQUIRE WAYNE HUMMER INVESTMENTS LLC AND WAYNE
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                           HUMMER MANAGEMENT COMPANY
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         LAKE  FOREST,  ILLINOIS -  Wintrust  Financial  Corporation  (Wintrust)
(Nasdaq:  WTFC)  announced  the signing of an agreement to purchase  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  over
seventy-one  years' history of providing  financial  services.  The Wayne Hummer
brand name is well known and respected in the Chicago  metropolitan area and its
client base is nationwide.  Accordingly, Wintrust intends to continue to use the
Wayne Hummer name in its brokerage and asset management operations.

         "This  transaction  is a win-win  situation for both companies and more
importantly  for our customers,"  stated Edward J. Wehmer,  President and CEO of
Wintrust.  "We are  partnering  with a company  that has a terrific  history and
operating  culture,  outstanding  growth and profit  potential,  and a dedicated
management  team.  All of the senior  officers have agreed to stay on and manage
the operations of the Wayne Hummer Companies. We are very excited about this new
relationship."

          "'Exciting' is exactly the right word to describe this  combination of
two leading financial  companies," said Ray Kratzer,  Wayne Hummer  Investment's
Managing Principal. "In both firms, the clients' interests always come first. We
are providing our 70+ years of investment  experience to a banking  company that
has grown  dramatically  throughout  its first 10 years to over $2.5  billion in
assets as of September 30 of this year.  We clearly see benefits for both firms'
clients and we are proud to join Wintrust's dynamic management team."

                                     - 1 -

WAYNE HUMMER COMPANIES
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         Wayne Hummer Investments LLC ("WHI"), a registered broker/dealer, is an
investment  services  firm  headquartered  in  Chicago,   Illinois.   WHI  is  a
self-clearing  broker/dealer  that  provides a full range of private  client and
brokerage  services to clients  located  primarily in the Midwest.  Its products
include securities brokerage services, annuities,  insurance and a wide array of
other financial products. Currently, WHI has approximately 35,000 customers with
client  assets  of  approximately  $4.1  billion.   WHI  generated  revenues  of
approximately $35 million in its most recently completed fiscal year ended March
31, 2001. The firm is a member of the New York Stock Exchange, the Chicago Stock
Exchange,  the American Stock Exchange,  the National  Association of Securities
Dealers  (NASD) and the  Securities  Investors  Protection  Corporation  (SIPC).
Subsequent  to  closing,  WHI will  operate  as a  wholly  owned  subsidiary  of
Wintrust,  providing an expanded  base of products and services to its customers
and those of Wintrust's seven chartered banks.

         Focused  Investments  LLC  ("FI"),  a NASD member  broker/dealer,  is a
wholly owned subsidiary of WHI and provides a full range of investment solutions
to  clients  through  a  network  of  community-based   financial   institutions
throughout the Midwest.  Focused  Investments  anticipates  continued growth and
enhanced  resources as a result of synergies  created  through this new business
affiliation. Subsequent to closing, Focused Investments will continue to operate
as a wholly owned subsidiary of WHI.

         Wayne Hummer  Management  Company  ("WHMC") is a Registered  Investment
Adviser.  In its most recently  completed fiscal year ended March 31, 2001, WHMC
generated  revenues  approximating  $5.1  million  through its money  management
business  and in its  advisory  capacity  to the Wayne  Hummer  Companies'  four
proprietary   mutual   funds.   Individual   accounts   managed  by  WHMC  total
approximately  $400 million,  while the four proprietary mutual funds managed by
the firm have approximately $630 million in total assets. Subsequent to closing,
the  management  of WHMC's  individual  accounts  will be combined with Wintrust
Asset Management Company,  Wintrust's  nationally chartered trust and investment
management  company,  while  WHMC will  continue  to manage  its  mutual  funds.
Wintrust Asset Management currently manages approximately $435 million of assets
for its clients.

                                     - 2 -

ANTICIPATED TRANSACTION BENEFITS
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         The  transaction  is expected to benefit the combined  organization  in
numerous ways. These strategic benefits include:

     o    The  35,000  customers  of the Wayne  Hummer  Companies  will now have
          greater  access to banking  products  offered by Wintrust such as home
          mortgages,   home  equity   loans,   cash   management   accounts  and
          certificates of deposit, as well as trust and estate services.

     o    Wintrust  should  provide  strong  distribution   channels  through  a
          venerable  Chicago-based  investments  firm to  offer a full  range of
          brokerage  services  and  securities  products  such as mutual  funds,
          equities, debt instruments, annuities, and other insurance products to
          the  approximate  50,000  customers at its 29 existing bank locations.
          Wintrust does not currently  offer many of these services or products.
          The addition of these products and services  should aid Wintrust banks
          competitively,  allowing for further  penetration in their  respective
          markets.

     o    The combination of current assets under management from Wintrust Asset
          Management  Company  and WHMC would  result in about  $1.5  billion of
          direct  assets  under  management.  This is in  addition  to the  $4.1
          billion of brokerage assets at WHI.

     o    Additional  revenue  from the Wayne  Hummer  Companies  business  will
          further  diversify  and  enhance  Wintrust's  revenue  stream  and  is
          expected  to result in  non-interest  income in excess of 40% of total
          net revenues  during 2002, up from the current level of  approximately
          27%.

     o    Wintrust  plans to offer a market rate FDIC  insured  cash  management
          account in which customers of WHI can invest their liquid assets. This
          product will be able to provide up to $700,000 of FDIC  insurance  per
          customer and will have a rate of return that will be competitive  with
          money  market  funds.  Currently,  the assets  within the Wayne Hummer
          Companies money market fund exceed $400 million. It is expected that a
          significant  portion of these fund balances  could be  transferred  to
          insured  deposit  accounts at Wintrust  banks,  thereby  providing  an
          additional  source of low cost,  core  deposits to these  banks.  This
          coupled  with  Wintrust's  ability  to  generate  high  quality,  high
          yielding  earning  assets has the  potential  to  provide  significant
          earnings enhancement for the combined company.

     o    Wintrust  can  offer  trust  and  estate   services  to  Wayne  Hummer
          Companies'  asset  management  and private  investment  clients  using
          Wintrust's  national  trust  powers.   These  are  services  that  are
          currently being outsourced by the Wayne Hummer Companies.

     o    The  scope of  services  available  from the  combined  operations  of
          Wintrust/Wayne  Hummer Companies will allow both organizations to take
          another big step forward in their efforts to be a "one-stop  shop" for
          all the financial needs of their customers,  and increase market share
          in the communities served.


TERMS OF THE TRANSACTION
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         The initial purchase price of $28 million is comprised of $8 million of
cash,  $15 million of  Wintrust's  common stock and $5 million of deferred  cash
payments to be made over a three-year

                                     - 3 -

period subsequent to the closing date. Wintrust could pay additional  contingent
consideration upon the attainment of certain performance  measures over the next
five  years.  The  common  stock  will be  issued  at the fair  market  value as
determined  in  accordance  with the  agreement,  but the number of shares to be
issued at closing will not exceed 555,556.  The shares issued in the transaction
will not be registered  under the  Securities Act of 1933 and will be restricted
until a resale  registration  statement is filed and  declared  effective by the
Securities  and Exchange  Commission  which is expected to be done shortly after
the closing  date.  The  transaction  is subject to  regulatory  approval and is
expected to close in the first  quarter of 2002.  Additionally,  the 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.

ABOUT WINTRUST
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         Wintrust is a $2.5  billion  asset  multi-bank  holding  company  whose
common stock is traded on the Nasdaq Stock Market(R). 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 29 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.

                                     - 4 -

                           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,  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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