shares of mt bank corp mtb shed 280 to 15545 tuesday on what proved to be an allaround dismal trading session for the stock market with the sp 500 index spx falling 200 to 399734 and dow jones industrial average djia falling 206 to 3312959 mt bank corp closed 3797 short of its 52week high 19342 which the company reached on august 16th the stock underperformed when compared to some of its competitors tuesday as jpmorgan chase  co jpm fell 183 to 13963 bank of america corp bac fell 235 to 3452 and wells fargo  co wfc fell 263 to 4624 trading volume 18 m eclipsed its 50day average volume of 14 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