shares of biogen inc biib inched 064 higher to 20757 monday on what proved to be an allaround positive trading session for the stock market with the sp 500 index spx rising 013 to 396684 and the dow jones industrial average djia rising 028 to 3199004 biogen inc closed 14429 short of its 52week high 35186 which the company achieved on august 18th the stock demonstrated a mixed performance when compared to some of its competitors monday as johnson  johnson jnj rose 020 to 17246 pfizer inc pfe rose 105 to 5177 and abbvie inc abbv rose 118 to 15022 trading volume 769325 remained 312116 below its 50day average volume of 11 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