shares of american electric power co inc aep slid 222 to 8809 tuesday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 064 to 410990 and dow jones industrial average djia falling 101 to 3301214 this was the stocks second consecutive day of losses american electric power co inc closed 1751 short of its 52week high 10560 which the company achieved on september 12th the stock demonstrated a mixed performance when compared to some of its competitors tuesday as nextera energy inc nee fell 219 to 7584 duke energy corp duk fell 241 to 9401 and southern co so fell 210 to 7090 trading volume 25 m remained 259773 below its 50day average volume of 27 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