FF vs RDGT: Correlation
FutureFuel Corp. (FF) and Ridgetech, Inc. (RDGT) show a negative relationship: their 3-year correlation of weekly returns is -0.23.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FF and RDGT?
Over the past 3 years, FF and RDGT moved with a correlation of -0.23, which is negative, meaning they tend to move in opposite directions. The past 12 months show a weaker link (-0.45) than the 3-year average (-0.23). Over 5 years the correlation is -0.11, and the annualized covariance of weekly returns is -1334.7 %².
RDGT is close to the least connected end of FF's tracked universe, ranking #10 of 12. Correlation aside, the last 12 months split them widely, with FF ahead by 137.9 points (+38.4% versus -99.5%). Note the risk asymmetry: RDGT runs 2.5 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
FF vs RDGT: side by side
| FF (FutureFuel Corp.) | RDGT (Ridgetech, Inc.) | |
|---|---|---|
| 1-year return | +38.4% | -99.5% |
| 5-year return | +11.5% | -100.0% |
| Volatility (ann.) | 48.8% | 120.7% |
| Beta vs S&P 500 | 0.88 | 0.28 |
| Max drawdown (3Y) | -47.9% | -99.9% |
| Market cap | $0.2B | – |
| P/E (trailing) | – | – |
| Dividend yield | 3.58% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | FF | RDGT |
|---|---|---|
| 2022 | +9.9% | -21.5% |
| 2023 | -22.8% | -93.9% |
| 2024 | +31.0% | -59.8% |
| 2025 | -35.8% | +61.0% |
| 2026 | +65.4% | -99.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FF and RDGT good diversifiers for each other?
Yes: at -0.23, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between FF and RDGT?
The FF/RDGT correlation stands at -0.23 on a 3-year window (1 year: -0.45, 5 years: -0.11), computed from weekly returns as of 2026-08-27.
Is RDGT a good diversifier for FF?
Yes: at -0.23, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.23 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.
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Related comparisons
Hubs: FF correlations · RDGT correlations
