GRC vs QQQ: Correlation
Gorman-Rupp Company (The) (GRC) and Invesco QQQ Trust (QQQ) show a moderate relationship: their 3-year correlation of weekly returns is 0.34.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are GRC and QQQ?
On 3 years of weekly data the GRC/QQQ correlation comes out at 0.34, moderate. The past 12 months show a weaker link (0.10) than the 3-year average (0.34). The 5-year figure is 0.37, and annualized covariance runs at 200.5 %².
Among the 14 assets we track against GRC, QQQ sits near the bottom by co-movement, at rank #11. The last year tells two different stories: GRC led by 56.1 percentage points, +82.4% for GRC against +26.3% for QQQ. Risk is not evenly split, since GRC carries 1.6 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.
GRC vs QQQ: side by side
| GRC (Gorman-Rupp Company (The)) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +82.4% | +26.3% |
| 5-year return | +143.0% | +95.4% |
| Volatility (ann.) | 30.6% | 19.6% |
| Beta vs S&P 500 | 0.85 | 1.28 |
| Max drawdown (3Y) | -26.9% | -22.8% |
| Market cap | $2.0B | – |
| P/E (trailing) | 32.7 | – |
| Dividend yield | 0.97% | 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 | GRC | QQQ |
|---|---|---|
| 2022 | -41.2% | -32.6% |
| 2023 | +42.2% | +54.9% |
| 2024 | +8.9% | +25.6% |
| 2025 | +28.2% | +20.8% |
| 2026 | +63.7% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are GRC and QQQ good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.34 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between GRC and QQQ?
The GRC/QQQ correlation stands at 0.34 on a 3-year window (1 year: 0.10, 5 years: 0.37), computed from weekly returns as of 2026-08-27.
Is QQQ a good diversifier for GRC?
Yes, to a useful degree: a correlation of 0.34 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.34 mean?
On the −1 to +1 scale, 0.34 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.
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Related comparisons
Hubs: GRC correlations · QQQ correlations
