QQQ vs ROCK: Correlation
Measured on weekly returns over the past three years, Invesco QQQ Trust (QQQ) and Gibraltar Industries, Inc. (ROCK) carry a correlation of 0.36, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are QQQ and ROCK?
Over the past 3 years, QQQ and ROCK moved with a correlation of 0.36, which is moderate. Recent behaviour matches the longer record: 0.26 over 1 year against 0.36 over 3. Over 5 years the correlation is 0.40, and the annualized covariance of weekly returns is 278.0 %².
Among the 4755 assets we track against QQQ, ROCK ranks #964 by 3-year correlation. The last year tells two different stories: QQQ led by 55.3 percentage points, +26.3% for QQQ against -29.0% for ROCK. Risk is not evenly split, since ROCK carries 2.0 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.
QQQ vs ROCK: side by side
| QQQ (Invesco QQQ Trust) | ROCK (Gibraltar Industries, Inc.) | |
|---|---|---|
| 1-year return | +26.3% | -29.0% |
| 5-year return | +95.4% | -39.2% |
| Volatility (ann.) | 19.6% | 39.2% |
| Beta vs S&P 500 | 1.28 | 1.19 |
| Max drawdown (3Y) | -22.8% | -61.2% |
| Market cap | – | $1.4B |
| P/E (trailing) | – | 22.9 |
| Dividend yield | 0.44% | 0.00% |
| Expense ratio | 0.18% | – |
| Assets under management | $452.8B | – |
| Sector / category | ETF · US Growth & Tech | US Listed |
On the fund side, QQQ sits in the Large Growth category at Invesco, with $452.8B under management, 104 holdings, a 0.18% expense ratio, a 0.44% trailing dividend yield.
Year-by-year returns
| Year | QQQ | ROCK |
|---|---|---|
| 2022 | -32.6% | -31.2% |
| 2023 | +54.9% | +72.1% |
| 2024 | +25.6% | -25.4% |
| 2025 | +20.8% | -16.1% |
| 2026 | +17.7% | -7.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are QQQ and ROCK good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.36 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between QQQ and ROCK?
The QQQ/ROCK correlation stands at 0.36 on a 3-year window (1 year: 0.26, 5 years: 0.40), computed from weekly returns as of 2026-08-27.
Is ROCK a good diversifier for QQQ?
Yes, to a useful degree: a correlation of 0.36 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.36 mean?
A reading of 0.36 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/qqq-vs-rock.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/qqq-vs-rock/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: QQQ correlations · ROCK correlations
