PTEN vs RES: Correlation
Patterson-UTI Energy, Inc. (PTEN) and RPC, Inc. (RES) show a strong relationship: their 3-year correlation of weekly returns is 0.68.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PTEN and RES?
Over the past 3 years, PTEN and RES moved with a correlation of 0.68, which is strong. The past 12 months show a weaker link (0.55) than the 3-year average (0.68). Over 5 years the correlation is 0.76, and the annualized covariance of weekly returns is 1465.4 %².
By 3-year correlation, RES places #9 of the 23 assets tracked against PTEN. The last year tells two different stories: PTEN led by 84.9 percentage points, +125.4% for PTEN 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.
PTEN vs RES: side by side
| PTEN (Patterson-UTI Energy, Inc.) | RES (RPC, Inc.) | |
|---|---|---|
| 1-year return | +125.4% | +40.5% |
| 5-year return | +84.8% | +84.8% |
| Volatility (ann.) | 48.6% | 44.2% |
| Beta vs S&P 500 | 0.60 | 0.56 |
| Max drawdown (3Y) | -64.6% | -51.9% |
| Market cap | $4.7B | $1.4B |
| P/E (trailing) | – | 58.2 |
| Dividend yield | 3.06% | 2.61% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | PTEN | RES |
|---|---|---|
| 2022 | +101.7% | +96.7% |
| 2023 | -34.2% | -16.4% |
| 2024 | -21.0% | -16.4% |
| 2025 | -22.1% | -5.5% |
| 2026 | +104.9% | +20.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PTEN and RES good diversifiers for each other?
To a limited degree. At 0.68 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 PTEN and RES?
The PTEN/RES correlation stands at 0.68 on a 3-year window (1 year: 0.55, 5 years: 0.76), computed from weekly returns as of 2026-08-27.
Is RES a good diversifier for PTEN?
To a limited degree. At 0.68 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 0.68 mean?
On the −1 to +1 scale, 0.68 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/pten-vs-res.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/pten-vs-res/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: PTEN correlations · RES correlations
