shares of vertex pharmaceuticals inc vrtx sank 051 to 33946 thursday on what proved to be an allaround favorable trading session for the stock market with the sp 500 index spx rising 094 to 419805 and the dow jones industrial average djia rising 034 to 3353591 this was the stocks third consecutive day of losses vertex pharmaceuticals inc closed 1500 below its 52week high 35446 which the company reached on may 2nd the stock demonstrated a mixed performance when compared to some of its competitors thursday as abbvie inc abbv rose 006 to 14344 krystal biotech inc krys fell 084 to 8745 and arcturus therapeutics holdings inc arct fell 254 to 2760 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