OPTT vs QQQ: Correlation
Measured on weekly returns over the past three years, Ocean Power Technologies, Inc. (OPTT) and Invesco QQQ Trust (QQQ) carry a correlation of 0.19, a weak link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are OPTT and QQQ?
On 3 years of weekly data the OPTT/QQQ correlation comes out at 0.19, weak. The past 12 months show a tighter link (0.43) than the 3-year average (0.19). The 5-year figure is 0.20, and annualized covariance runs at 641.3 %².
Among the 10 assets we track against OPTT, QQQ sits near the bottom by co-movement, at rank #7. The last year tells two different stories: QQQ led by 93.2 percentage points, -66.9% for OPTT against +26.3% for QQQ. Risk is not evenly split, since OPTT carries 9.0 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.
OPTT vs QQQ: side by side
| OPTT (Ocean Power Technologies, Inc.) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | -66.9% | +26.3% |
| 5-year return | -91.7% | +95.4% |
| Volatility (ann.) | 176.9% | 19.6% |
| Beta vs S&P 500 | 2.48 | 1.28 |
| Max drawdown (3Y) | -91.3% | -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 | OPTT | QQQ |
|---|---|---|
| 2022 | -69.6% | -32.6% |
| 2023 | -28.9% | +54.9% |
| 2024 | +218.8% | +25.6% |
| 2025 | -70.6% | +20.8% |
| 2026 | -40.4% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are OPTT and QQQ good diversifiers for each other?
Yes: at 0.19, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between OPTT and QQQ?
Using weekly returns as of 2026-08-27: 0.19 over 3 years, with 0.43 over the last year and 0.20 over 5 years.
Is QQQ a good diversifier for OPTT?
Yes: at 0.19, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of 0.19 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/optt-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/optt-vs-qqq/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: OPTT correlations · QQQ correlations
