shares of wabtec wab slid 326 to 8687 monday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 320 to 399124 and dow jones industrial average djia falling 199 to 3224570 this was the stocks third consecutive day of losses wabtec closed 1318 short of its 52week high 10005 which the company reached on march 29th despite its losses the stock outperformed some of its competitors monday as trinity industries inc trn fell 461 to 2563 and greenbrier cos inc gbx fell 402 to 4054 trading volume 686732 remained 521098 below its 50day average volume of 12 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