shares of comerica inc cma shed 375 to 8205 tuesday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 432 to 393269 and dow jones industrial average djia falling 394 to 3110497 comerica inc closed 2004 below its 52week high 10209 which the company reached on february 10th the stock demonstrated a mixed performance when compared to some of its competitors tuesday as jpmorgan chase  co jpm fell 347 to 11639 bank of america corp bac fell 360 to 3400 and wells fargo  co wfc fell 507 to 4322 trading volume 16 m eclipsed its 50day average volume of 919614 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