shares of amgen inc amgn shed 158 to 23719 wednesday on what proved to be an allaround favorable trading session for the stock market with the sp 500 index spx rising 145 to 458718 and the dow jones industrial average djia rising 086 to 3576806 the stocks fall snapped a twoday winning streak amgen inc closed 2381 below its 52week high 26100 which the company achieved on april 21st the stock underperformed when compared to some of its competitors wednesday as johnson  johnson jnj fell 001 to 17149 roche holding ag part cert rhhvf rose 328 to 38258 and pfizer inc pfe fell 044 to 5147 trading volume 50 m eclipsed its 50day average volume of 30 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