shares of perrigo co plc prgo inched 087 higher to 4157 monday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 030 to 390011 and dow jones industrial average djia falling 020 to 3143826 this was the stocks sixth consecutive day of gains perrigo co plc closed 933 below its 52week high 5090 which the company reached on september 30th the stock underperformed when compared to some of its competitors monday as daiichi sankyo co ltd dskyf rose 105 to 2500 catalent inc ctlt rose 115 to 11087 and united therapeutics corp uthr rose 092 to 24114 trading volume 14 m remained 104297 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