shares of dexcom inc dxcm slipped 122 to 12107 thursday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 017 to 413062 and dow jones industrial average djia falling 066 to 3330951 dexcom inc closed 537 short of its 52week high 12644 which the company achieved on april 27th the stock underperformed when compared to some of its competitors thursday as abbott laboratories abt fell 058 to 11005 and insulet corp podd fell 049 to 32127 trading volume 17 m remained 542562 below its 50day average volume of 22 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