EGY vs REI: Correlation
VAALCO Energy, Inc. (EGY) and Ring Energy, Inc. (REI) show a strong relationship: their 3-year correlation of weekly returns is 0.66.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are EGY and REI?
Over the past 3 years, EGY and REI moved with a correlation of 0.66, which is strong. The relationship has been stable: the 1-year correlation (0.56) sits close to the 3-year figure. Over 5 years the correlation is 0.66, and the annualized covariance of weekly returns is 1714.1 %².
REI is one of the assets that tracks EGY most closely: it ranks #1 out of the 10 assets we track against EGY. Their recent paths diverged sharply: over the last 12 months EGY outperformed by 23.4 percentage points (+57.0% for EGY against +33.6% for REI).
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.
EGY vs REI: side by side
| EGY (VAALCO Energy, Inc.) | REI (Ring Energy, Inc.) | |
|---|---|---|
| 1-year return | +57.0% | +33.6% |
| 5-year return | +195.9% | -36.4% |
| Volatility (ann.) | 47.9% | 54.5% |
| Beta vs S&P 500 | 0.50 | 0.37 |
| Max drawdown (3Y) | -56.5% | -65.6% |
| Market cap | $0.6B | $0.4B |
| P/E (trailing) | – | – |
| Dividend yield | 4.39% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | EGY | REI |
|---|---|---|
| 2022 | +45.5% | +7.9% |
| 2023 | +4.4% | -40.7% |
| 2024 | +2.0% | -6.8% |
| 2025 | -10.7% | -36.0% |
| 2026 | +64.0% | +69.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are EGY and REI good diversifiers for each other?
To a limited degree. At 0.66 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 EGY and REI?
Using weekly returns as of 2026-08-27: 0.66 over 3 years, with 0.56 over the last year and 0.66 over 5 years.
Is REI a good diversifier for EGY?
To a limited degree. At 0.66 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 0.66 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/egy-vs-rei.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/egy-vs-rei/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: EGY correlations · REI correlations
