shares of nrg energy inc nrg slipped 167 to 3602 tuesday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 190 to 456700 and dow jones industrial average djia falling 186 to 3448372 nrg energy inc closed 1008 short of its 52week high 4610 which the company reached on august 26th despite its losses the stock outperformed some of its competitors tuesday as nextera energy inc nee fell 212 to 8678 duke energy corp duk fell 320 to 9701 and southern co so fell 274 to 6110true trading volume 43 m eclipsed its 50day average volume of 21 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