shares of west pharmaceutical services inc wst shed 231 to 26369 tuesday on what proved to be an allaround dismal 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 west pharmaceutical services inc closed 21131 below its 52week high 47500 which the company achieved on december 27th the stock underperformed when compared to some of its competitors tuesday as johnson  johnson jnj fell 079 to 16497 medtronic plc mdt fell 136 to 8846 and stryker corp syk fell 132 to 21796 trading volume 319605 remained 57939 below its 50day average volume of 377544 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