MPC vs VLO: Correlation
Measured on weekly returns over the past three years, Marathon Petroleum (MPC) and Valero Energy (VLO) carry a correlation of 0.88, a very strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MPC and VLO?
Across a 3-year window, the weekly returns of MPC and VLO correlate at 0.88, very strong, meaning they move nearly in lockstep. Little has changed lately, as the 1-year reading of 0.88 lands near the 3-year figure. Stretching to 5 years gives 0.87, with an annualized covariance of 1043.9 %².
VLO is one of the assets that tracks MPC most closely: it ranks #2 out of the 29 assets we track against MPC. Correlation aside, the last 12 months split them widely, with VLO ahead by 27.0 points (+107.8% versus +134.8%). Stability stands out here, with the rolling one-year correlation confined to 0.84 through 0.89.
How is this computed?
Pearson correlation on weekly returns: ρ(A,B) = cov(rA, rB) / (σA · σB), over windows of 52, 156 and 260 weeks. Covariance is annualized (×52) and expressed in %². Full definitions on the methodology page.
MPC vs VLO: side by side
| MPC (Marathon Petroleum) | VLO (Valero Energy) | |
|---|---|---|
| 1-year return | +107.8% | +134.8% |
| 5-year return | +589.6% | +512.9% |
| Volatility (ann.) | 34.2% | 34.8% |
| Beta vs S&P 500 | 0.48 | 0.55 |
| Max drawdown (3Y) | -44.7% | -41.2% |
| Market cap | $102.1B | $99.8B |
| P/E (trailing) | 12.6 | 14.5 |
| Dividend yield | 1.10% | 1.34% |
| Sector / category | Energy | Energy |
Year-by-year returns
| Year | MPC | VLO |
|---|---|---|
| 2022 | +86.6% | +75.0% |
| 2023 | +30.5% | +5.9% |
| 2024 | -4.1% | -3.0% |
| 2025 | +19.2% | +37.0% |
| 2026 | +126.1% | +116.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are MPC and VLO good diversifiers for each other?
No: a correlation of 0.88 means MPC and VLO tend to fall together, which is precisely when diversification is supposed to help.
FAQ
What is the correlation between MPC and VLO?
The MPC/VLO correlation stands at 0.88 on a 3-year window (1 year: 0.88, 5 years: 0.87), computed from weekly returns as of 2026-08-27.
Is VLO a good diversifier for MPC?
No: a correlation of 0.88 means MPC and VLO tend to fall together, which is precisely when diversification is supposed to help.
What does a correlation of 0.88 mean?
A reading of 0.88 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
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Related comparisons
Hubs: MPC correlations · VLO correlations
