shares of aon plc aon slipped 244 to 29324 monday on what proved to be an allaround positive trading session for the stock market with the sp 500 index spx rising 064 to 479656 and the dow jones industrial average djia rising 068 to 3658506 aon plc closed 3301 below its 52week high 32625 which the company reached on october 29th the stock demonstrated a mixed performance when compared to some of its competitors monday as moodys corp mco fell 179 to 38359 equifax inc efx fell 300 to 28400 and orix corp adr ix rose 071 to 10250 trading volume 804133 remained 519058 below its 50day average volume of 13 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