shares of nrg energy inc nrg rose 121 to 3267 monday on what proved to be an allaround favorable trading session for the stock market with the sp 500 index spx rising 143 to 399056 and the dow jones industrial average djia rising 158 to 3400504 this was the stocks second consecutive day of gains nrg energy inc closed 1515 below its 52week high 4782 which the company reached on may 26th the stock underperformed when compared to some of its competitors monday as duke energy corp duk rose 196 to 10232 exelon corp exc rose 261 to 4250 and sempra sre rose 272 to 16553 trading volume 45 m eclipsed its 50day average volume of 30 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