QQQ vs WLDN: Correlation
Invesco QQQ Trust (QQQ) and Willdan Group, Inc. (WLDN) show a weak relationship: their 3-year correlation of weekly returns is 0.23.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are QQQ and WLDN?
Over the past 3 years, QQQ and WLDN moved with a correlation of 0.23, which is weak. Little has changed lately, as the 1-year reading of 0.28 lands near the 3-year figure. Over 5 years the correlation is 0.29, and the annualized covariance of weekly returns is 236.9 %².
Among the 4755 assets we track against QQQ, WLDN ranks #2460 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months QQQ outperformed by 50.7 percentage points (+26.3% for QQQ against -24.4% for WLDN). Risk is not evenly split, since WLDN carries 2.7 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.
QQQ vs WLDN: side by side
| QQQ (Invesco QQQ Trust) | WLDN (Willdan Group, Inc.) | |
|---|---|---|
| 1-year return | +26.3% | -24.4% |
| 5-year return | +95.4% | +134.3% |
| Volatility (ann.) | 19.6% | 52.6% |
| Beta vs S&P 500 | 1.28 | 0.98 |
| Max drawdown (3Y) | -22.8% | -50.4% |
| Market cap | – | $1.3B |
| P/E (trailing) | – | 20.2 |
| Dividend yield | 0.44% | 0.00% |
| 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 | WLDN |
|---|---|---|
| 2022 | -32.6% | -49.3% |
| 2023 | +54.9% | +20.4% |
| 2024 | +25.6% | +77.2% |
| 2025 | +20.8% | +172.1% |
| 2026 | +17.7% | -15.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are QQQ and WLDN good diversifiers for each other?
Reasonably. At 0.23, QQQ and WLDN keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between QQQ and WLDN?
As of 2026-08-27, the correlation of weekly returns between QQQ and WLDN is 0.23 over 3 years, 0.28 over 1 year and 0.29 over 5 years.
Is WLDN a good diversifier for QQQ?
Reasonably. At 0.23, QQQ and WLDN keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.23 mean?
On the −1 to +1 scale, 0.23 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/qqq-vs-wldn.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/qqq-vs-wldn/)
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Related comparisons
Hubs: QQQ correlations · WLDN correlations
