shares of dexcom inc dxcm inched 094 higher to 49639 wednesday on what proved to be an allaround mixed trading session for the stock market with the dow jones industrial average djia rising 071 to 3516079 and the sp 500 index spx falling 006 to 445945 this was the stocks second consecutive day of gains dexcom inc closed 16306 short of its 52week high 65945 which the company reached on november 18th the stock demonstrated a mixed performance when compared to some of its competitors wednesday as johnson  johnson jnj rose 044 to 18389 abbott laboratories abt rose 222 to 12264 and medtronic plc mdt rose 252 to 11300 trading volume 541347 remained 241227 below its 50day average volume of 782574 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