LYB vs MPC: Correlation
How closely do LyondellBasell (LYB) and Marathon Petroleum (MPC) trade together? Their weekly returns over three years give a correlation of 0.59, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are LYB and MPC?
Over the past 3 years, LYB and MPC moved with a correlation of 0.59, which is moderate. The relationship has been stable: the 1-year correlation (0.64) sits close to the 3-year figure. Over 5 years the correlation is 0.61, and the annualized covariance of weekly returns is 685.3 %².
Within LYB's tracked universe of 36 assets, MPC comes in at #7 by 3-year correlation. Correlation aside, the last 12 months split them widely, with MPC ahead by 88.7 points (+19.1% versus +107.8%). The rolling one-year correlation stayed in a tight band between 0.44 and 0.69 over the past three years, which points to a structural rather than episodic relationship.
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.
LYB vs MPC: side by side
| LYB (LyondellBasell) | MPC (Marathon Petroleum) | |
|---|---|---|
| 1-year return | +19.1% | +107.8% |
| 5-year return | -12.8% | +589.6% |
| Volatility (ann.) | 33.7% | 34.2% |
| Beta vs S&P 500 | 0.42 | 0.48 |
| Max drawdown (3Y) | -55.4% | -44.7% |
| Market cap | $20.4B | $102.1B |
| P/E (trailing) | – | 12.6 |
| Dividend yield | 6.58% | 1.10% |
| Sector / category | Materials | Energy |
Year-by-year returns
| Year | LYB | MPC |
|---|---|---|
| 2022 | -1.0% | +86.6% |
| 2023 | +20.7% | +30.5% |
| 2024 | -17.4% | -4.1% |
| 2025 | -36.0% | +19.2% |
| 2026 | +50.5% | +126.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are LYB and MPC good diversifiers for each other?
Somewhat, no more. With 0.59 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between LYB and MPC?
Using weekly returns as of 2026-08-27: 0.59 over 3 years, with 0.64 over the last year and 0.61 over 5 years.
Is MPC a good diversifier for LYB?
Somewhat, no more. With 0.59 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.59 mean?
On the −1 to +1 scale, 0.59 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/lyb-vs-mpc.json
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Related comparisons
Hubs: LYB correlations · MPC correlations
