shares of ao smith corp aos were unchanged wednesday on what proved to be an allaround dismal trading session for the stock market with the sp 500 index spx falling 138 to 451339 and dow jones industrial average djia falling 098 to 3528252 ao smith corp closed 436 below its 52week high 7695 which the company achieved on july 20th trading volume 10 m remained 6354 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