shares of west pharmaceutical services inc wst dropped 054 to 33798 wednesday on what proved to be an allaround great trading session for the stock market with the sp 500 index spx rising 142 to 402781 and the dow jones industrial average djia rising 100 to 3271760 the stocks fall snapped a fourday winning streak west pharmaceutical services inc closed 8602 below its 52week high 42400 which the company reached on april 7th the stock underperformed when compared to some of its competitors wednesday as abbott laboratories abt rose 155 to 9862 becton dickinson  co bdx rose 070 to 24293 and baxter international inc bax rose 173 to 4054 trading volume 566388 remained 42346 below its 50day average volume of 608734 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