shares of pinnacle west capital corp pnw shed 161 to 7083 monday on what proved to be an allaround dismal trading session for the stock market with the sp 500 index spx falling 024 to 437394 and dow jones industrial average djia falling 049 to 3389260 pinnacle west capital corp closed 1771 below its 52week high 8854 which the company reached on may 10th the stock underperformed when compared to some of its competitors monday as xcel energy inc xel rose 015 to 6733 edison international eix rose 172 to 6342 and idacorp inc ida fell 050 to 10395 trading volume 11 m eclipsed its 50day average volume of 912420 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