shares of steris plc ste shed 157 to 21263 thursday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 058 to 447000 and dow jones industrial average djia falling 054 to 3521312 the stocks fall snapped a twoday winning streak steris plc closed 1337 below its 52week high 22600 which the company achieved on august 17th the stock underperformed when compared to some of its competitors thursday as thermo fisher scientific inc tmo rose 086 to 55277 medtronic plc mdt fell 088 to 13337 and danaher corp dhr fell 036 to 31834 trading volume 305683 remained 150359 below its 50day average volume of 456042 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