Marathon Runs Out Of Upside, UBS Downgrades By: Benzinga via Benzinga November 15, 2017 at 12:11 PM EST Marathon Petroleum Corp (NYSE: MPC) shares have run up sharply in the year-to-date period, prompting UBS to move to the sidelines. The ... Read More >> Related Stocks: Marathon Petroleum Mplx LP UBS Group Ag ADR