News Releases

Comerica Directors Authorize Purchase of up to 10 Million Shares of Common Stock
PRNewswire-FirstCall
DALLAS
(NYSE:CMA)

DALLAS, Nov. 13 /PRNewswire-FirstCall/ -- The Comerica Incorporated Board of Directors has authorized the Corporation to purchase up to 10 million shares, or 6.6 percent of its outstanding common stock at September 30, 2007.

(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 September 30, 2007, to purchase up to approximately 3.6 million shares.

Comerica Incorporated (NYSE: CMA) is a financial services company headquartered in Dallas, Texas and strategically aligned into three major business segments: the Business Bank, the Retail Bank, and Wealth & Institutional Management. Comerica focuses on relationships and helping businesses and people to be successful. Comerica Bank locations can be found in Michigan, California, Texas, Arizona and Florida, with select businesses operating in several other states, and Canada and Mexico. Comerica reported total assets of $60 billion at September 30, 2007. To receive e-mail alerts of breaking Comerica news, go to http://www.comerica.com/newsalerts.

Photo: NewsCom: http://www.newscom.com/cgi-bin/prnh/20010807/CMALOGO
AP Archive: http://photoarchive.ap.org/
PRN Photo Desk, photodesk@prnewswire.com

SOURCE: Comerica Incorporated

CONTACT: Media, Wayne Mielke, +1-214-462-4463, or Investors, Darlene
Persons, +1-313-222-2840, or Paul Jaremski, +1-214-969-6476, all of Comerica
Incorporated

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