shares of willis towers watson plc wtw advanced 145 to 20721 tuesday on what proved to be an allaround positive trading session for the stock market with the sp 500 index spx rising 202 to 408885 and the dow jones industrial average djia rising 134 to 3265459 willis towers watson plc closed 6098 below its 52week high 26819 which the company achieved on may 18th the stock demonstrated a mixed performance when compared to some of its competitors tuesday as marsh  mclennan cos mmc rose 019 to 15933 arthur j gallagher  co ajg rose 188 to 16417 and brown  brown inc bro rose 143 to 5828 trading volume 386421 remained 472097 below its 50day average volume of 858518 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