shares of comerica inc cma shed 081 to 8196 friday on what proved to be an allaround dismal trading session for the stock market with the sp 500 index spx falling 163 to 410854 and dow jones industrial average djia falling 105 to 3289970 comerica inc closed 2013 short of its 52week high 10209 which the company achieved on february 10th despite its losses the stock outperformed some of its competitors friday as jpmorgan chase  co jpm fell 139 to 13016 bank of america corp bac fell 139 to 3619 and wells fargo  co wfc fell 113 to 4482true trading volume 734272 remained 803312 below its 50day average volume of 15 m editors note this story was autogenerated by automated insights an automation technology provider using data from dow jones and factset see our market data terms of use