shares of amgen inc amgn inched 047 higher to 29101 thursday on what proved to be an allaround favorable trading session for the stock market with the sp 500 index spx rising 554 to 395637 and the dow jones industrial average djia rising 370 to 3371537 amgen inc closed 566 below its 52week high 29667 which the company achieved on november 8th the stock demonstrated a mixed performance when compared to some of its competitors thursday as johnson  johnson jnj rose 117 to 17447 roche holding ag part cert rhhvf fell 038 to 32475 and pfizer inc pfe rose 141 to 4738 trading volume 41 m eclipsed its 50day average volume of 28 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