shares of aon plc aon inched 046 higher to 31432 friday on what proved to be an allaround great trading session for the stock market with the sp 500 index spx rising 011 to 429886 and the dow jones industrial average djia rising 013 to 3387678 this was the stocks second consecutive day of gains aon plc closed 2395 below its 52week high 33827 which the company reached on may 12th trading volume 423878 remained 372233 below its 50day average volume of 796111 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