shares of hollyfrontier corp hfc shed 353 to 3119 wednesday on what proved to be an allaround mixed trading session for the stock market with the sp 500 index spx rising 003 to 452409 and the dow jones industrial average djia falling 014 to 3531253 hollyfrontier corp closed 1120 below its 52week high 4239 which the company reached on march 11th the stock underperformed when compared to some of its competitors wednesday as chevron corp cvx fell 110 to 9571 phillips 66 psx fell 264 to 6921 and marathon petroleum corp mpc fell 341 to 5725 trading volume 16 m remained 463701 below its 50day average volume of 21 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