shares of southern co so sank 064 to 7095 monday on what proved to be an allaround mixed trading session for the stock market with the sp 500 index spx rising 002 to 419263 and the dow jones industrial average djia falling 042 to 3328658 southern co closed 962 below its 52week high 8057 which the company achieved on august 19th the stock underperformed when compared to some of its competitors monday as nextera energy inc nee rose 013 to 7458 dominion energy inc d rose 008 to 5216 and american electric power co inc aep fell 017 to 8641 trading volume 29 m remained 14 million below its 50day average volume of 44 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