shares of amgen inc amgn sank 082 to 25193 monday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 002 to 439169 and dow jones industrial average djia falling 011 to 3441169 the stocks fall snapped a twoday winning streak amgen inc closed 907 short of its 52week high 26100 which the company achieved on april 21st the stock demonstrated a mixed performance when compared to some of its competitors monday as johnson  johnson jnj fell 125 to 17766 roche holding ag part cert rhhvf fell 005 to 41000 and pfizer inc pfe fell 241 to 5184 trading volume 30 m remained 288779 below its 50day average volume of 33 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