shares of marathon petroleum corp mpc sank 004 to 11996 wednesday on what proved to be an allaround favorable trading session for the stock market with the sp 500 index spx rising 074 to 447216 and the dow jones industrial average djia rising 025 to 3434743 marathon petroleum corp closed 1887 below its 52week high 13883 which the company achieved on april 3rd the stock underperformed when compared to some of its competitors wednesday as exxon mobil corp xom rose 049 to 10649 and chevron corp cvx rose 096 to 15964 trading volume 23 m remained 16 million below its 50day average volume of 40 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