shares of nrg energy inc nrg inched 086 higher to 3887 tuesday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 034 to 439745 and dow jones industrial average djia falling 026 to 3422036 nrg energy inc closed 723 short of its 52week high 4610 which the company achieved on august 26th the stock demonstrated a mixed performance when compared to some of its competitors tuesday as nextera energy inc nee fell 082 to 8389 duke energy corp duk rose 104 to 11542 and southern co so rose 142 to 7554 trading volume 20 m remained 850720 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