shares of pinnacle west capital corp pnw sank 039 to 6939 thursday on what proved to be an allaround positive trading session for the stock market with the sp 500 index spx rising 099 to 399895 and the dow jones industrial average djia rising 051 to 3203690 this was the stocks second consecutive day of losses pinnacle west capital corp closed 1734 below its 52week high 8673 which the company reached on july 27th the stock demonstrated a mixed performance when compared to some of its competitors thursday as xcel energy inc xel rose 015 to 6770 edison international eix fell 016 to 6076 and idacorp inc ida fell 053 to 10466 trading volume 656095 remained 84759 below its 50day average volume of 740854 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