shares of ao smith corp aos slid 235 to 6474 friday on what proved to be an allaround dismal trading session for the stock market with the sp 500 index spx falling 277 to 427178 and dow jones industrial average djia falling 282 to 3381140 ao smith corp closed 2200 short of its 52week high 8674 which the company reached on december 30th the stock underperformed when compared to some of its competitors friday as lennox international inc lii fell 216 to 24684 and bwx technologies inc bwxt fell 144 to 5465 trading volume 974952 remained 74806 below its 50day average volume of 10 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