shares of valero energy corp vlo inched 004 higher to 8103 monday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 014 to 467029 and dow jones industrial average djia falling 045 to 3606887 this was the stocks third consecutive day of gains valero energy corp closed 392 below its 52week high 8495 which the company reached on june 3rd the stock demonstrated a mixed performance when compared to some of its competitors monday as phillips 66 psx rose 232 to 8386 marathon petroleum corp mpc fell 068 to 7045 and hollyfrontier corp hfc rose 175 to 3424 trading volume 40 m eclipsed its 50day average volume of 37 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