shares of biogen inc biib slipped 378 to 26155 tuesday on what proved to be an allaround favorable trading session for the stock market with the sp 500 index spx rising 039 to 470090 and the dow jones industrial average djia rising 015 to 3614222 the stocks fall snapped a twoday winning streak biogen inc closed 20700 below its 52week high 46855 which the company reached on june 7th the stock underperformed when compared to some of its competitors tuesday as johnson  johnson jnj fell 052 to 16267 pfizer inc pfe fell 010 to 4960 and abbvie inc abbv fell 036 to 11642 trading volume 12 m eclipsed 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