shares of dexcom inc dxcm slipped 361 to 61806 monday on what proved to be an allaround mixed trading session for the stock market with the dow jones industrial average djia rising 005 to 3561925 and the sp 500 index spx falling 032 to 468294 this was the stocks third consecutive day of losses dexcom inc closed 4139 short of its 52week high 65945 which the company reached on november 18th the stock underperformed when compared to some of its competitors monday as johnson  johnson jnj fell 132 to 15970 abbott laboratories abt fell 125 to 12526 and medtronic plc mdt fell 028 to 11689 trading volume 832004 eclipsed its 50day average volume of 529544 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