RES vs RNGR: Correlation
RPC, Inc. (RES) and Ranger Energy Services, Inc. (RNGR) show a strong relationship: their 3-year correlation of weekly returns is 0.63.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are RES and RNGR?
Over the past 3 years, RES and RNGR moved with a correlation of 0.63, which is strong. The relationship has been stable: the 1-year correlation (0.53) sits close to the 3-year figure. Over 5 years the correlation is 0.36, and the annualized covariance of weekly returns is 1029.4 %².
Among the 17 assets we track against RES, RNGR ranks #8 by 3-year correlation. Correlation aside, the last 12 months split them widely, with RES ahead by 21.5 points (+40.5% versus +19.0%).
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.
RES vs RNGR: side by side
| RES (RPC, Inc.) | RNGR (Ranger Energy Services, Inc.) | |
|---|---|---|
| 1-year return | +40.5% | +19.0% |
| 5-year return | +84.8% | +129.0% |
| Volatility (ann.) | 44.2% | 37.1% |
| Beta vs S&P 500 | 0.56 | 0.49 |
| Max drawdown (3Y) | -51.9% | -40.5% |
| Market cap | $1.4B | $0.4B |
| P/E (trailing) | 58.2 | 26.4 |
| Dividend yield | 2.61% | 1.52% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | RES | RNGR |
|---|---|---|
| 2022 | +96.7% | +7.2% |
| 2023 | -16.4% | -6.3% |
| 2024 | -16.4% | +53.9% |
| 2025 | -5.5% | -7.9% |
| 2026 | +20.0% | +18.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are RES and RNGR good diversifiers for each other?
Somewhat, no more. With 0.63 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between RES and RNGR?
Using weekly returns as of 2026-08-27: 0.63 over 3 years, with 0.53 over the last year and 0.36 over 5 years.
Is RNGR a good diversifier for RES?
Somewhat, no more. With 0.63 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.63 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/res-vs-rngr.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/res-vs-rngr/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: RES correlations · RNGR correlations
