HTOO vs QQQ: Correlation
Measured on weekly returns over the past three years, Fusion Fuel Green PLC (HTOO) and Invesco QQQ Trust (QQQ) carry a correlation of 0.05, a near-zero link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are HTOO and QQQ?
Across a 3-year window, the weekly returns of HTOO and QQQ correlate at 0.05, near zero, meaning they move largely independently. Lately the two have moved closer together, with the 1-year correlation at 0.38 versus 0.05 over 3 years. Stretching to 5 years gives 0.09, with an annualized covariance of 131.6 %².
QQQ is close to the least connected end of HTOO's tracked universe, ranking #8 of 11. The last year tells two different stories: QQQ led by 76.5 percentage points, -50.2% for HTOO against +26.3% for QQQ. Note the risk asymmetry: HTOO runs 6.5 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.
HTOO vs QQQ: side by side
| HTOO (Fusion Fuel Green PLC) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | -50.2% | +26.3% |
| 5-year return | -99.5% | +95.4% |
| Volatility (ann.) | 126.6% | 19.6% |
| Beta vs S&P 500 | 0.90 | 1.28 |
| Max drawdown (3Y) | -97.7% | -22.8% |
| Market cap | – | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.44% |
| Expense ratio | – | 0.18% |
| Assets under management | – | $452.8B |
| Sector / category | US Listed | ETF · US Growth & Tech |
QQQ is a Large Growth fund from Invesco: $452.8B under management, 104 holdings, a 0.18% expense ratio, a 0.44% trailing dividend yield.
Year-by-year returns
| Year | HTOO | QQQ |
|---|---|---|
| 2022 | -46.5% | -32.6% |
| 2023 | -74.7% | +54.9% |
| 2024 | -49.7% | +25.6% |
| 2025 | -83.1% | +20.8% |
| 2026 | -39.6% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are HTOO and QQQ good diversifiers for each other?
By historical standards, yes. A correlation of 0.05 means the two rarely move for the same reasons.
FAQ
What is the correlation between HTOO and QQQ?
The HTOO/QQQ correlation stands at 0.05 on a 3-year window (1 year: 0.38, 5 years: 0.09), computed from weekly returns as of 2026-08-27.
Is QQQ a good diversifier for HTOO?
By historical standards, yes. A correlation of 0.05 means the two rarely move for the same reasons.
What does a correlation of 0.05 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: HTOO correlations · QQQ correlations
