shares of gartner inc it slipped 130 to 32860 wednesday on what proved to be an allaround mixed trading session for the stock market with the dow jones industrial average djia rising 003 to 3374384 and the sp 500 index spx falling 002 to 401622 this was the stocks third consecutive day of losses gartner inc closed 2965 short of its 52week high 35825 which the company reached on december 13th the stock underperformed when compared to some of its competitors wednesday as trade desk inc cl a