shares of becton dickinson  co bdx slumped 066 to 24194 thursday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 138 to 409041 and dow jones industrial average djia falling 126 to 3369685 becton dickinson  co closed 3535 below its 52week high 27729 which the company achieved on april 8th the stock demonstrated a mixed performance when compared to some of its competitors thursday as danaher corp dhr fell 053 to 25575 medtronic plc mdt fell 034 to 8420 and dexcom inc dxcm fell 242 to 11726 trading volume 845356 remained 364875 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