shares of wabtec wab shed 443 to 8410 thursday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 325 to 366677 and dow jones industrial average djia falling 242 to 2992707 the stocks fall snapped a twoday winning streak wabtec closed 1595 below its 52week high 10005 which the company achieved on march 29th despite its losses the stock outperformed some of its competitors thursday as trinity industries inc trn fell 647 to 2239 and greenbrier cos inc gbx fell 658 to 3646 trading volume 12 m eclipsed its 50day average volume of 921204 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