shares of gartner inc it slumped 000 to 33295 monday on what proved to be an allaround great trading session for the stock market with the sp 500 index spx rising 119 to 401981 and the dow jones industrial average djia rising 076 to 3362956 gartner inc closed 2530 below its 52week high 35825 which the company achieved on december 13th the stock underperformed when compared to some of its competitors monday as trade desk inc cl a ttd rose 355 to 4719 iqvia holdings inc iqv rose 230 to 22875 and omnicom group inc omc rose 091 to 8454 trading volume 383859 remained 9968 below its 50day average volume of 393827 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