shares of omnicom group inc omc slipped 225 to 7563 tuesday on what proved to be an allaround mixed trading session for the stock market with the sp 500 index spx rising 025 to 400105 and the dow jones industrial average djia falling 026 to 3216074 this was the stocks fourth consecutive day of losses omnicom group inc closed 1598 below its 52week high 9161 which the company reached on february 10th the stock underperformed when compared to some of its competitors tuesday as publicis groupe sa adr pubgy rose 072 to 1402 and interpublic group of cos ipg fell 176 to 3190 trading volume 14 m remained 530475 below its 50day average volume of 19 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