shares of aon plc aon advanced 107 to 28449 tuesday on what proved to be an allaround dismal trading session for the stock market with the sp 500 index spx falling 041 to 385610 and dow jones industrial average djia falling 024 to 3265320 aon plc closed 5749 below its 52week high 34198 which the company achieved on april 21st the stock outperformed some of its competitors tuesday as moodys corp mco fell 020 to 26435 equifax inc efx fell 032 to 16899 and orix corp adr ix rose 004 to 7326 trading volume 816067 remained 10749 below its 50day average volume of 826816 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