shares of dexcom inc dxcm rose 274 to 8592 wednesday on what proved to be an allaround favorable trading session for the stock market with the sp 500 index spx rising 029 to 414077 and the dow jones industrial average djia rising 018 to 3296923 the stocks rise snapped a sixday losing streak dexcom inc closed 7894 below its 52week high 16486 which the company reached on november 18th the stock outperformed some of its competitors wednesday as johnson  johnson jnj fell 033 to 16558 abbott laboratories abt fell 054 to 10544 and medtronic plc mdt fell 104 to 8928 trading volume 25 m remained 351776 below its 50day average volume of 28 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