DETROIT, July 26 /PRNewswire-FirstCall/ -- The Board of Directors of Comerica Incorporated (NYSE: CMA) today authorized the Corporation to purchase up to 10 million shares, or 5.9 percent, of its outstanding common stock.

(Logo: http://www.newscom.com/cgi-bin/prnh/20010807/CMALOGO )

The shares will be purchased from time to time in the open market or through negotiated transactions and used for general corporate purposes. This action is in addition to an existing program with a remaining authorization at June 30, 2005, to purchase up to approximately 4.2 million shares.

Comerica Incorporated is a financial services company headquartered in Detroit, strategically aligned into the Business Bank, Small Business & Personal Financial Services, and Wealth & Institutional Management. Comerica focuses on relationships, and helping businesses and people be successful. Comerica reported total assets of $54.7 billion at June 30, 2005.

SOURCE: Comerica Incorporated

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