shares of vertex pharmaceuticals inc vrtx inched 001 higher to 27386 tuesday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 067 to 409119 and dow jones industrial average djia falling 123 to 3239617 the stocks rise snapped a fourday losing streak vertex pharmaceuticals inc closed 2298 below its 52week high 29684 which the company reached on july 11th the stock demonstrated a mixed performance when compared to some of its competitors tuesday as johnson  johnson jnj fell 057 to 17292 merck  co inc mrk fell 104 to 8761 and abbvie inc abbv rose 012 to 14039 trading volume 10 m remained 620131 below its 50day average volume of 16 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