QQQ vs WOOF: Correlation
Measured on weekly returns over the past three years, Invesco QQQ Trust (QQQ) and Petco Health and Wellness Company, Inc. (WOOF) carry a correlation of 0.26, a weak link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are QQQ and WOOF?
On 3 years of weekly data the QQQ/WOOF correlation comes out at 0.26, weak. Little has changed lately, as the 1-year reading of 0.17 lands near the 3-year figure. The 5-year figure is 0.28, and annualized covariance runs at 420.9 %².
By 3-year correlation, WOOF places #2054 of the 4755 assets tracked against QQQ. Their recent paths diverged sharply: over the last 12 months QQQ outperformed by 41.6 percentage points (+26.3% for QQQ against -15.3% for WOOF). Note the risk asymmetry: WOOF runs 4.3 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.
QQQ vs WOOF: side by side
| QQQ (Invesco QQQ Trust) | WOOF (Petco Health and Wellness Company, Inc.) | |
|---|---|---|
| 1-year return | +26.3% | -15.3% |
| 5-year return | +95.4% | -87.2% |
| Volatility (ann.) | 19.6% | 84.1% |
| Beta vs S&P 500 | 1.28 | 1.55 |
| Max drawdown (3Y) | -22.8% | -72.3% |
| Market cap | – | $0.8B |
| P/E (trailing) | – | 135.5 |
| Dividend yield | 0.44% | 0.00% |
| Expense ratio | 0.18% | – |
| Assets under management | $452.8B | – |
| Sector / category | ETF · US Growth & Tech | US Listed |
QQQ, Invesco's Large Growth fund, carries $452.8B under management, 104 holdings, a 0.18% expense ratio, a 0.44% trailing dividend yield.
Year-by-year returns
| Year | QQQ | WOOF |
|---|---|---|
| 2022 | -32.6% | -52.1% |
| 2023 | +54.9% | -66.7% |
| 2024 | +25.6% | +20.6% |
| 2025 | +20.8% | -26.2% |
| 2026 | +17.7% | -3.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are QQQ and WOOF good diversifiers for each other?
A fair diversifier. At 0.26, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between QQQ and WOOF?
Using weekly returns as of 2026-08-27: 0.26 over 3 years, with 0.17 over the last year and 0.28 over 5 years.
Is WOOF a good diversifier for QQQ?
A fair diversifier. At 0.26, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.26 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-woof.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/qqq-vs-woof/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: QQQ correlations · WOOF correlations
