Marshall & Ilsley Corporation to Release Third Quarter Earnings on Wednesday, October 17

MILWAUKEE, Sept. 25  /PRNewswire-FirstCall/ -- Marshall & Ilsley Corporation (NYSE:MI) today announced it will release its third quarter 2007 earnings on Wednesday, October 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 October 17 and will run through 5:00 p.m. October 24, by calling [phone] and entering pass code 165 72 089.

The text of the third 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 October 17.

Marshall & Ilsley Corporation (NYSE:MI) is a diversified financial services corporation headquartered in Milwaukee, Wis., with $58.3 billion in assets. Founded in 1847, M&I Marshall & Ilsley Bank is the largest Wisconsin-based bank, with 192 offices throughout the state. In addition, M&I has 49 locations throughout Arizona; 30 offices along Florida's west coast and in central Florida; 14 offices in Kansas City and nearby communities; 22 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 17 offices in the greater St. Louis area. Metavante Corporation, a wholly owned subsidiary, provides a full array of technology products and services for the financial services industry. On April 3, 2007, Marshall & Ilsley Corporation announced its plans to split Metavante Corporation and Marshall & Ilsley Corporation into independent publicly traded companies. 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/ 

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