shares of wabtec wab shed 207 to 8692 tuesday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 113 to 385593 and dow jones industrial average djia falling 101 to 3070623 wabtec closed 1313 below its 52week high 10005 which the company achieved on march 29th the stock underperformed when compared to some of its competitors tuesday as trinity industries inc trn fell 017 to 2334 and greenbrier cos inc gbx fell 069 to 2869 trading volume 945461 eclipsed its 50day average volume of 807529 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