Marathon Petroleum (MPC) vs Phillips 66 (PSX)

Updated September 19, 2026 · Data: Yahoo Finance

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Marathon Petroleum (MPC)

+164.29%

YTD return in 2026

Price$424.89

Day move+0.69% yesterday

YTD rank#8

MPC full page →

Phillips 66 (PSX)

+116.09%

YTD return in 2026

Price$273.13

Day move-0.39% yesterday

YTD rank#14

PSX full page →

YTD return chart — 2026

Marathon Petroleum (MPC) is outperforming Phillips 66 (PSX) by 48.20 percentage points year-to-date in 2026 (+164.29% vs +116.09%), as of September 19, 2026. Both are S&P 500 constituents tracked daily from their December 31, 2025 closing prices.

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For informational purposes only — not financial advice.