MTDR vs REPX: Correlation
How closely do Matador Resources Company (MTDR) and Riley Exploration Permian, Inc. (REPX) trade together? Their weekly returns over three years give a correlation of 0.72, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MTDR and REPX?
Across a 3-year window, the weekly returns of MTDR and REPX correlate at 0.72, strong. Little has changed lately, as the 1-year reading of 0.71 lands near the 3-year figure. Stretching to 5 years gives 0.62, with an annualized covariance of 1334.5 %².
By 3-year correlation, REPX places #14 of the 27 assets tracked against MTDR. The last year tells two different stories: REPX led by 22.4 percentage points, +17.4% for MTDR against +39.8% for REPX.
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.
MTDR vs REPX: side by side
| MTDR (Matador Resources Company) | REPX (Riley Exploration Permian, Inc.) | |
|---|---|---|
| 1-year return | +17.4% | +39.8% |
| 5-year return | +115.7% | +145.9% |
| Volatility (ann.) | 40.3% | 46.0% |
| Beta vs S&P 500 | 0.49 | 0.58 |
| Max drawdown (3Y) | -46.8% | -38.0% |
| Market cap | $7.0B | $0.8B |
| P/E (trailing) | 9.7 | 6.7 |
| Dividend yield | 2.60% | 4.27% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | MTDR | REPX |
|---|---|---|
| 2022 | +55.8% | +60.2% |
| 2023 | +0.6% | -3.9% |
| 2024 | +0.4% | +23.8% |
| 2025 | -22.3% | -12.7% |
| 2026 | +36.7% | +50.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are MTDR and REPX good diversifiers for each other?
Only partially. A correlation of 0.72 means MTDR and REPX share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between MTDR and REPX?
Using weekly returns as of 2026-08-27: 0.72 over 3 years, with 0.71 over the last year and 0.62 over 5 years.
Is REPX a good diversifier for MTDR?
Only partially. A correlation of 0.72 means MTDR and REPX share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.72 mean?
On the −1 to +1 scale, 0.72 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/mtdr-vs-repx.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/mtdr-vs-repx/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: MTDR correlations · REPX correlations
