shares of wabtec wab dropped 014 to 9135 wednesday on what proved to be an allaround great trading session for the stock market with the sp 500 index spx rising 031 to 470121 and the dow jones industrial average djia rising 010 to 3575475 the stocks fall snapped a twoday winning streak wabtec closed 636 short of its 52week high 9771 which the company achieved on november 10th the stock demonstrated a mixed performance when compared to some of its competitors wednesday as trinity industries inc trn rose 180 to 2829 and greenbrier cos inc gbx fell 065 to 4253 trading volume 557309 remained 304371 below its 50day average volume of 861680 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