shares of aon plc aon rose 206 to 28603 wednesday on what proved to be an allaround favorable trading session for the stock market with the sp 500 index spx rising 156 to 415517 and the dow jones industrial average djia rising 129 to 3281250 the stocks rise snapped a threeday losing streak aon plc closed 5595 below its 52week high 34198 which the company achieved on april 21st the stock demonstrated a mixed performance when compared to some of its competitors wednesday as moodys corp mco rose 078 to 30992 equifax inc efx rose 325 to 21301 and orix corp adr ix fell 168 to 8584 trading volume 843476 remained 142674 below its 50day average volume of 986150 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