EPM vs MGY: Correlation
How closely do Evolution Petroleum Corporation, Inc. (EPM) and Magnolia Oil & Gas Corporation (MGY) trade together? Their weekly returns over three years give a correlation of 0.59, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are EPM and MGY?
Across a 3-year window, the weekly returns of EPM and MGY correlate at 0.59, moderate. Lately the two have drifted apart, with the 1-year correlation at 0.46 versus 0.59 over 3 years. Stretching to 5 years gives 0.62, with an annualized covariance of 651.2 %².
By 3-year correlation, MGY places #4 of the 10 assets tracked against EPM. Correlation aside, the last 12 months split them widely, with MGY ahead by 32.4 points (-21.8% versus +10.6%).
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.
EPM vs MGY: side by side
| EPM (Evolution Petroleum Corporation, Inc.) | MGY (Magnolia Oil & Gas Corporation) | |
|---|---|---|
| 1-year return | -21.8% | +10.6% |
| 5-year return | +28.8% | +92.1% |
| Volatility (ann.) | 34.3% | 32.0% |
| Beta vs S&P 500 | 0.50 | 0.40 |
| Max drawdown (3Y) | -55.2% | -31.5% |
| Market cap | $0.1B | $6.5B |
| P/E (trailing) | – | 11.5 |
| Dividend yield | 14.04% | 2.50% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | EPM | MGY |
|---|---|---|
| 2022 | +58.7% | +26.5% |
| 2023 | -17.3% | -7.3% |
| 2024 | -2.0% | +12.2% |
| 2025 | -25.2% | -3.8% |
| 2026 | +6.9% | +24.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are EPM and MGY good diversifiers for each other?
Somewhat, no more. With 0.59 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between EPM and MGY?
Using weekly returns as of 2026-08-27: 0.59 over 3 years, with 0.46 over the last year and 0.62 over 5 years.
Is MGY a good diversifier for EPM?
Somewhat, no more. With 0.59 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.59 mean?
A reading of 0.59 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/epm-vs-mgy.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/epm-vs-mgy/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: EPM correlations · MGY correlations
