shares of perrigo co plc prgo dropped 064 to 3858 thursday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 102 to 374452 and dow jones industrial average djia falling 115 to 2992694 the stocks fall snapped a threeday winning streak perrigo co plc closed 1081 below its 52week high 4939 which the company reached on october 7th the stock demonstrated a mixed performance when compared to some of its competitors thursday as daiichi sankyo co ltd dskyf rose 164 to 2912 catalent inc ctlt fell 283 to 7871 and united therapeutics corp uthr fell 106 to 20980 trading volume 11 m remained 148477 below its 50day average volume of 13 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