HTOO vs SENEB: Correlation
Fusion Fuel Green PLC (HTOO) and Seneca Foods Corp. (SENEB) show a negative relationship: their 3-year correlation of weekly returns is -0.18.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are HTOO and SENEB?
Across a 3-year window, the weekly returns of HTOO and SENEB correlate at -0.18, negative, meaning they tend to move in opposite directions. The link has tightened recently: the 1-year correlation (0.05) runs above the 3-year figure (-0.18). Stretching to 5 years gives -0.15, with an annualized covariance of -752.7 %².
Out of 11 assets tracked against HTOO, SENEB lands near the bottom at #10. The last year tells two different stories: SENEB led by 123.1 percentage points, -50.2% for HTOO against +72.9% for SENEB. Note the risk asymmetry: HTOO runs 3.8 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.
HTOO vs SENEB: side by side
| HTOO (Fusion Fuel Green PLC) | SENEB (Seneca Foods Corp.) | |
|---|---|---|
| 1-year return | -50.2% | +72.9% |
| 5-year return | -99.5% | +292.8% |
| Volatility (ann.) | 126.6% | 33.7% |
| Beta vs S&P 500 | 0.90 | 0.14 |
| Max drawdown (3Y) | -97.7% | -22.4% |
| Market cap | – | $1.3B |
| P/E (trailing) | – | 11.2 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | HTOO | SENEB |
|---|---|---|
| 2022 | -46.5% | +28.5% |
| 2023 | -74.7% | -14.7% |
| 2024 | -49.7% | +53.7% |
| 2025 | -83.1% | +38.0% |
| 2026 | -39.6% | +76.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are HTOO and SENEB good diversifiers for each other?
Yes: at -0.18, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between HTOO and SENEB?
As of 2026-08-27, the correlation of weekly returns between HTOO and SENEB is -0.18 over 3 years, 0.05 over 1 year and -0.15 over 5 years.
Is SENEB a good diversifier for HTOO?
Yes: at -0.18, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.18 mean?
A reading of -0.18 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/htoo-vs-seneb.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/htoo-vs-seneb/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: HTOO correlations · SENEB correlations
