Marshall & Ilsley Corporation to Release First Quarter Earnings on Tuesday, April 17

MILWAUKEE, March 27  /PRNewswire-FirstCall/ -- Marshall & Ilsley Corporation today announced it will release its first quarter 2007 earnings on Tuesday, April 17, at 8:00 a.m. (Central Daylight Time). A conference call will be held at 11:00 a.m. (CDT). Individuals interested in listening should call [phone] and ask for M&I's quarterly earnings release conference call. A replay of the call will be available beginning at 2:30 p.m. on April 17 and will run through 5:00 p.m. April 24, by calling [phone] and entering pass code 138 09 19.

The text of the first quarter earnings press release can be found at ( http://www.micorp.com/ ), Investor Relations, News. Supplemental financial information referenced in the conference call can be found at ( http://www.micorp.com/ ), Investor Relations, after 8:00 a.m. on April 17.

Marshall & Ilsley Corporation (NYSE:MI) is a diversified financial services corporation headquartered in Milwaukee, Wis., with $56.2 billion in assets. Founded in 1847, M&I Marshall & Ilsley Bank is the largest Wisconsin- based bank, with 193 offices throughout the state. In addition, M&I has 46 locations throughout Arizona; 17 offices in Kansas City and nearby communities; 17 offices on Florida's west coast; 17 offices in metropolitan Minneapolis/St. Paul, and one in Duluth, Minn.; three offices in Tulsa, Okla.; and one office in Las Vegas, Nev. M&I's Southwest Bank subsidiary has 16 offices in the greater St. Louis area. In December 2006, M&I signed a definitive agreement to acquire United Heritage Bankshares of Florida with 13 locations in the Orlando area. The transaction, expected to be completed in the second quarter of 2007, will give M&I 30 branches along Florida's west coast and central Florida.  Metavante Corporation, a wholly owned subsidiary, provides a full array of technology products and services for the financial services industry. M&I also provides trust and investment management, equipment leasing, mortgage banking, asset-based lending, financial planning, investments, and insurance services from offices throughout the country and on the Internet ( http://www.mibank.com/ or http://www.micorp.com/ ). M&I's customer-based approach, internal growth, and strategic acquisitions have made M&I a nationally recognized leader in the financial services industry. 

DATASOURCE: Marshall & Ilsley Corporation



CONTACT:  Greg Smith, senior vice president, chief financial officer,

[phone], or Dave Urban, vice president, director of investor

relations, [phone], both of Marshall & Ilsley Corporation



Web site:  http://www.micorp.com/

http://www.mibank.com/ 

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