shares of diamondback energy inc fang slipped 079 to 13228 friday on what proved to be an allaround favorable trading session for the stock market with the sp 500 index spx rising 011 to 429886 and the dow jones industrial average djia rising 013 to 3387678 this was the stocks second consecutive day of losses diamondback energy inc closed 3667 below its 52week high 16895 which the company reached on november 15th the stock demonstrated a mixed performance when compared to some of its competitors friday as eog resources inc eog rose 009 to 11625 pioneer natural resources co pxd fell 108 to 20480 and devon energy corp dvn fell 030 to 4987 trading volume 11 m remained 755940 below its 50day average volume of 19 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