VLO vs XOM: Correlation
How closely do Valero Energy (VLO) and ExxonMobil (XOM) trade together? Their weekly returns over three years give a correlation of 0.65, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are VLO and XOM?
Over the past 3 years, VLO and XOM moved with a correlation of 0.65, which is strong. The past 12 months show a weaker link (0.52) than the 3-year average (0.65). Over 5 years the correlation is 0.67, and the annualized covariance of weekly returns is 547.7 %².
Among the 28 assets we track against VLO, XOM ranks #11 by 3-year correlation. Correlation aside, the last 12 months split them widely, with VLO ahead by 92.0 points (+134.8% versus +42.8%). The rolling one-year correlation stayed in a tight band between 0.52 and 0.76 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.
VLO vs XOM: side by side
| VLO (Valero Energy) | XOM (ExxonMobil) | |
|---|---|---|
| 1-year return | +134.8% | +42.8% |
| 5-year return | +512.9% | +237.9% |
| Volatility (ann.) | 34.8% | 24.3% |
| Beta vs S&P 500 | 0.55 | 0.01 |
| Max drawdown (3Y) | -41.2% | -20.1% |
| Market cap | $99.8B | $643.3B |
| P/E (trailing) | 14.5 | 20.1 |
| Dividend yield | 1.34% | 2.58% |
| Sector / category | Energy | Energy |
Year-by-year returns
| Year | VLO | XOM |
|---|---|---|
| 2022 | +75.0% | +87.4% |
| 2023 | +5.9% | -6.3% |
| 2024 | -3.0% | +11.3% |
| 2025 | +37.0% | +16.0% |
| 2026 | +116.1% | +32.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are VLO and XOM good diversifiers for each other?
To a limited degree. At 0.65 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between VLO and XOM?
The VLO/XOM correlation stands at 0.65 on a 3-year window (1 year: 0.52, 5 years: 0.67), computed from weekly returns as of 2026-08-27.
Is XOM a good diversifier for VLO?
To a limited degree. At 0.65 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.65 mean?
On the −1 to +1 scale, 0.65 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/vlo-vs-xom.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/vlo-vs-xom/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: VLO correlations · XOM correlations
