shares of pinnacle west capital corp pnw slipped 279 to 7740 tuesday on what proved to be an allaround positive trading session for the stock market with the sp 500 index spx rising 130 to 400287 and the dow jones industrial average djia rising 098 to 3256060 pinnacle west capital corp closed 320 below its 52week high 8060 which the company achieved on december 14th the stock underperformed when compared to some of its competitors tuesday as nextera energy inc nee fell 080 to 7536 southern co so fell 207 to 6713 and dominion energy inc d fell 275 to 5409 trading volume 13 m eclipsed its 50day average volume of 10 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