QQQ vs WSBF: Correlation
Measured on weekly returns over the past three years, Invesco QQQ Trust (QQQ) and Waterstone Financial, Inc. (WSBF) carry a correlation of 0.25, a weak link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are QQQ and WSBF?
Across a 3-year window, the weekly returns of QQQ and WSBF correlate at 0.25, weak. The past 12 months show a weaker link (-0.00) than the 3-year average (0.25). Stretching to 5 years gives 0.27, with an annualized covariance of 126.4 %².
Among the 4755 assets we track against QQQ, WSBF ranks #2197 by 3-year correlation. Correlation aside, the last 12 months split them widely, with WSBF ahead by 23.6 points (+26.3% versus +49.9%).
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.
QQQ vs WSBF: side by side
| QQQ (Invesco QQQ Trust) | WSBF (Waterstone Financial, Inc.) | |
|---|---|---|
| 1-year return | +26.3% | +49.9% |
| 5-year return | +95.4% | +33.3% |
| Volatility (ann.) | 19.6% | 26.2% |
| Beta vs S&P 500 | 1.28 | 0.61 |
| Max drawdown (3Y) | -22.8% | -26.5% |
| Market cap | – | $0.4B |
| P/E (trailing) | – | 12.1 |
| Dividend yield | 0.44% | 3.05% |
| Expense ratio | 0.18% | – |
| Assets under management | $452.8B | – |
| Sector / category | ETF · US Growth & Tech | US Listed |
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 | QQQ | WSBF |
|---|---|---|
| 2022 | -32.6% | -15.8% |
| 2023 | +54.9% | -13.1% |
| 2024 | +25.6% | -0.9% |
| 2025 | +20.8% | +28.8% |
| 2026 | +17.7% | +30.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are QQQ and WSBF good diversifiers for each other?
Reasonably. At 0.25, QQQ and WSBF keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between QQQ and WSBF?
Using weekly returns as of 2026-08-27: 0.25 over 3 years, with -0.00 over the last year and 0.27 over 5 years.
Is WSBF a good diversifier for QQQ?
Reasonably. At 0.25, QQQ and WSBF keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.25 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/qqq-vs-wsbf.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/qqq-vs-wsbf/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: QQQ correlations · WSBF correlations
