shares of ao smith corp aos shed 128 to 7009 tuesday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 047 to 438871 and dow jones industrial average djia falling 072 to 3405387 ao smith corp closed 178 below its 52week high 7187 which the company achieved on february 2nd trading volume 693165 remained 395838 below its 50day average volume of 11 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