shares of perrigo co plc prgo inched 011 higher to 3742 tuesday on what proved to be an allaround favorable trading session for the stock market with the sp 500 index spx rising 146 to 407660 and the dow jones industrial average djia rising 109 to 3408604 this was the stocks third consecutive day of gains perrigo co plc closed 648 below its 52week high 4390 which the company reached on august 9th the stock underperformed when compared to some of its competitors tuesday as johnson  johnson