shares of cme group inc cl a cme slumped 099 to 18348 thursday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 017 to 413062 and dow jones industrial average djia falling 066 to 3330951 cme group inc cl a closed 2861 below its 52week high 21209 which the company reached on june 28th the stock underperformed when compared to some of its competitors thursday as intercontinental exchange inc ice fell 026 to 10821 trading volume 935673 remained 685167 below its 50day average volume of 16 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