HAL vs RES: Correlation
Measured on weekly returns over the past three years, Halliburton (HAL) and RPC, Inc. (RES) carry a correlation of 0.73, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are HAL and RES?
Across a 3-year window, the weekly returns of HAL and RES correlate at 0.73, strong. The relationship has been stable: the 1-year correlation (0.64) sits close to the 3-year figure. Stretching to 5 years gives 0.75, with an annualized covariance of 1234.1 %².
Within HAL's tracked universe of 44 assets, RES comes in at #13 by 3-year correlation. The last year tells two different stories: HAL led by 22.3 percentage points, +62.8% for HAL against +40.5% for RES.
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.
HAL vs RES: side by side
| HAL (Halliburton) | RES (RPC, Inc.) | |
|---|---|---|
| 1-year return | +62.8% | +40.5% |
| 5-year return | +93.6% | +84.8% |
| Volatility (ann.) | 38.0% | 44.2% |
| Beta vs S&P 500 | 0.55 | 0.56 |
| Max drawdown (3Y) | -54.0% | -51.9% |
| Market cap | $29.6B | $1.4B |
| P/E (trailing) | 18.0 | 58.2 |
| Dividend yield | 1.97% | 2.61% |
| Sector / category | Energy | US Listed |
Year-by-year returns
| Year | HAL | RES |
|---|---|---|
| 2022 | +74.5% | +96.7% |
| 2023 | -6.5% | -16.4% |
| 2024 | -23.2% | -16.4% |
| 2025 | +7.0% | -5.5% |
| 2026 | +26.7% | +20.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are HAL and RES good diversifiers for each other?
Somewhat, no more. With 0.73 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between HAL and RES?
As of 2026-08-27, the correlation of weekly returns between HAL and RES is 0.73 over 3 years, 0.64 over 1 year and 0.75 over 5 years.
Is RES a good diversifier for HAL?
Somewhat, no more. With 0.73 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.73 mean?
A reading of 0.73 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/hal-vs-res.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/hal-vs-res/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: HAL correlations · RES correlations
