GPRE vs REX: Correlation
How closely do Green Plains, Inc. (GPRE) and REX American Resources Corporation (REX) trade together? Their weekly returns over three years give a correlation of 0.46, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are GPRE and REX?
Over the past 3 years, GPRE and REX moved with a correlation of 0.46, which is moderate. Little has changed lately, as the 1-year reading of 0.52 lands near the 3-year figure. Over 5 years the correlation is 0.45, and the annualized covariance of weekly returns is 1167.3 %².
Among the 12 assets we track against GPRE, REX ranks #6 by 3-year correlation. The trailing year gives GPRE the advantage: +41.1% versus +34.7%, a 6.4-point spread. Risk is not evenly split, since GPRE carries 1.6 times the volatility of the other side.
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.
GPRE vs REX: side by side
| GPRE (Green Plains, Inc.) | REX (REX American Resources Corporation) | |
|---|---|---|
| 1-year return | +41.1% | +34.7% |
| 5-year return | -58.5% | +190.5% |
| Volatility (ann.) | 62.5% | 40.2% |
| Beta vs S&P 500 | 0.65 | 0.44 |
| Max drawdown (3Y) | -90.3% | -41.6% |
| Market cap | $1.0B | $1.3B |
| P/E (trailing) | 8.9 | 15.2 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | GPRE | REX |
|---|---|---|
| 2022 | -12.3% | -0.4% |
| 2023 | -17.3% | +48.5% |
| 2024 | -62.4% | -11.9% |
| 2025 | +3.4% | +55.0% |
| 2026 | +43.3% | +26.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are GPRE and REX good diversifiers for each other?
Reasonably. At 0.46, GPRE and REX keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between GPRE and REX?
Using weekly returns as of 2026-08-27: 0.46 over 3 years, with 0.52 over the last year and 0.45 over 5 years.
Is REX a good diversifier for GPRE?
Reasonably. At 0.46, GPRE and REX keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.46 mean?
On the −1 to +1 scale, 0.46 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/gpre-vs-rex.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/gpre-vs-rex/)
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Related comparisons
Hubs: GPRE correlations · REX correlations
