shares of diamondback energy inc fang shed 160 to 13130 monday on what proved to be an allaround mixed trading session for the stock market with the dow jones industrial average djia rising 008 to 3222342 and the sp 500 index spx falling 039 to 400801 the stocks fall snapped a twoday winning streak diamondback energy inc closed 1669 below its 52week high 14799 which the company achieved on march 25th the stock demonstrated a mixed performance when compared to some of its competitors monday as pioneer natural resources co pxd rose 263 to 26878 occidental petroleum corp oxy rose 568 to 6772 and concho resources inc cxo fell 602 to 6560 trading volume 39 m eclipsed its 50day average volume of 26 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