shares of cboe global markets inc cboe sank 003 to 13981 wednesday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 138 to 451339 and dow jones industrial average djia falling 098 to 3528252 cboe global markets inc closed 402 short of its 52week high 14383 which the company reached on july 26th despite its losses the stock outperformed some of its competitors wednesday as cme group inc cl a cme fell 008 to 19967 and intercontinental exchange inc ice fell 003 to 11500 trading volume 577868 remained 20535 below its 50day average volume of 598403 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