shares of nrg energy inc nrg advanced 245 to 3226 monday on what proved to be an allaround favorable trading session for the stock market with the sp 500 index spx rising 016 to 397753 and the dow jones industrial average djia rising 060 to 3243208 this was the stocks second consecutive day of gains nrg energy inc closed 1556 short of its 52week high 4782 which the company achieved on may 26th the stock outperformed some of its competitors monday as duke energy corp duk rose 034 to 9469 exelon corp exc rose 070 to 4052 and sempra sre rose 108 to 14432 trading volume 40 m remained 435640 below its 50day average volume of 44 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