AMPY vs REI: Correlation
How closely do Amplify Energy Corp. (AMPY) and Ring Energy, Inc. (REI) trade together? Their weekly returns over three years give a correlation of 0.65, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AMPY and REI?
On 3 years of weekly data the AMPY/REI correlation comes out at 0.65, strong. Little has changed lately, as the 1-year reading of 0.61 lands near the 3-year figure. The 5-year figure is 0.59, and annualized covariance runs at 2001.7 %².
REI is one of the assets that tracks AMPY most closely: it ranks #1 out of the 12 assets we track against AMPY. Their recent paths diverged sharply: over the last 12 months REI outperformed by 17.9 percentage points (+15.7% for AMPY against +33.6% for REI).
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.
AMPY vs REI: side by side
| AMPY (Amplify Energy Corp.) | REI (Ring Energy, Inc.) | |
|---|---|---|
| 1-year return | +15.7% | +33.6% |
| 5-year return | +30.1% | -36.4% |
| Volatility (ann.) | 56.4% | 54.5% |
| Beta vs S&P 500 | 0.28 | 0.37 |
| Max drawdown (3Y) | -71.1% | -65.6% |
| Market cap | $0.2B | $0.4B |
| P/E (trailing) | 9.1 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | AMPY | REI |
|---|---|---|
| 2022 | +182.6% | +7.9% |
| 2023 | -32.5% | -40.7% |
| 2024 | +1.2% | -6.8% |
| 2025 | -23.8% | -36.0% |
| 2026 | +3.1% | +69.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AMPY and REI good diversifiers for each other?
Only partially. A correlation of 0.65 means AMPY and REI 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 AMPY and REI?
As of 2026-08-27, the correlation of weekly returns between AMPY and REI is 0.65 over 3 years, 0.61 over 1 year and 0.59 over 5 years.
Is REI a good diversifier for AMPY?
Only partially. A correlation of 0.65 means AMPY and REI share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.65 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/ampy-vs-rei.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/ampy-vs-rei/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: AMPY correlations · REI correlations
