Comerica ( NYSE:CMA – Get Free Report ) was downgraded by research analysts at Keefe, Bruyette & Woods from an "outperform" rating to a "market perform" rating in a research report issued to clients and investors on Thursday, Marketbeat.com reports. They currently have a $93.00 price target on the financial services provider's stock. Keefe, Bruyette & Woods' target price indicates a potential upside of 22.56% from the stock's previous close.