MB Financial, Inc. To Join NASDAQ Financial-100 Index Beginning October 17, 2002

MB Financial, Inc. (NASDAQ:MBFI) of Chicago, Illinois, will become a component of the NASDAQ Financial-100 Index® effective at the beginning of trading Thursday, October 17, 2002. MB Financial, Inc. will replace Webster Financial Corporation (NASDAQ:WBST), which is being de-listed from NASDAQ.

With a market capitalization of $598 million, MB Financial, Inc. is the parent company of MB Financial Bank, N.A. (Illinois), Union Bank, N.A. (Oklahoma), and Abrams Centre National Bank (Texas). MB Financial has been delivering personalized service for more than 90 years to privately owned, middle-market companies as well as to individuals who live and work in the Chicago metropolitan area.

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