MPC vs PSX: which was the better investment?
Marathon Petroleum Corporation against Phillips 66 on real daily total-return data — every dividend reinvested, from Apr 12, 2012 to Jul 13, 2026.
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Frequently asked questions
Did MPC beat PSX?
Yes — measured from Apr 12, 2012 to Jul 13, 2026 with dividends reinvested, MPC came out ahead: $213,545 versus $93,723 from a $10,000 start. That gap compounds from a 24.0% annual return against 17.0%.
What would $10,000 in MPC be worth today?
$10,000 invested in Marathon Petroleum Corporation (MPC) on Apr 12, 2012 would be worth about $213,545 as of Jul 13, 2026, a total return of 2035.5% (24.0% per year). The same $10,000 in PSX would be worth $93,723.
Which was riskier — MPC or PSX?
MPC swung with an annualized volatility of 38.4% and a worst peak-to-trough drop of -79.7%; PSX ran at 33.6% volatility with a -64.2% maximum drawdown. Risk-adjusted (Sharpe ratio), that is 0.57 for MPC vs 0.45 for PSX.
What data is this comparison based on?
Daily adjusted closing prices covering Apr 12, 2012 through Jul 13, 2026 — the full period where both assets have price history. Adjusted prices include dividends and splits, so these are total returns. The page refreshes with new market data every day.
Can I change the dates, amounts, or add monthly investing?
Yes — the interactive tool on this page is pre-loaded with MPC vs PSX. You can set any start and end date, change the starting amount, add monthly contributions, or build a multi-asset portfolio and compare it against any benchmark.