shares of amgen inc amgn slid 035 to 22423 thursday on what proved to be an allaround positive trading session for the stock market with the sp 500 index spx rising 094 to 419805 and the dow jones industrial average djia rising 034 to 3353591 this was the stocks third consecutive day of losses amgen inc closed 7244 short of its 52week high 29667 which the company reached on november 8th the stock demonstrated a mixed performance when compared to some of its competitors thursday as johnson  johnson jnj fell 032 to 15848 and pfizer inc pfe fell 073 to 3648 trading volume 22 m remained 30025 below its 50day average volume of 23 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