shares of rockwell automation inc rok slid 193 to 31325 tuesday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 071 to 444808 and dow jones industrial average djia falling 079 to 3534328 rockwell automation inc closed 770 short of its 52week high 32095 which the company reached on august 11th the stock underperformed when compared to some of its competitors tuesday as emerson electric co emr fell 090 to 10271 trading volume 608841 remained 125603 below its 50day average volume of 734444 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