shares of gilead sciences inc gild shed 338 to 8510 monday on what proved to be an allaround dismal trading session for the stock market with the sp 500 index spx falling 008 to 389209 and dow jones industrial average djia falling 034 to 3351765 the stocks fall snapped a threeday winning streak gilead sciences inc closed 464 short of its 52week high 8974 which the company reached on december 13th the stock demonstrated a mixed performance when compared to some of its competitors monday as johnson  johnson jnj fell 259 to 17558 pfizer inc pfe fell 497 to 4839 and abbott laboratories abt fell 016 to 11215 trading volume 54 m remained 29 million below its 50day average volume of 83 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