QQQ vs RDGT: Correlation
Measured on weekly returns over the past three years, Invesco QQQ Trust (QQQ) and Ridgetech, Inc. (RDGT) carry a correlation of 0.03, a near-zero link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are QQQ and RDGT?
Over the past 3 years, QQQ and RDGT moved with a correlation of 0.03, which is near zero, meaning they move largely independently. The relationship has been stable: the 1-year correlation (0.03) sits close to the 3-year figure. Over 5 years the correlation is 0.08, and the annualized covariance of weekly returns is 77.9 %².
Among the 4755 assets we track against QQQ, RDGT ranks #4332 by 3-year correlation. The last year tells two different stories: QQQ led by 125.8 percentage points, +26.3% for QQQ against -99.5% for RDGT. Risk is not evenly split, since RDGT carries 6.2 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 RDGT: side by side
| QQQ (Invesco QQQ Trust) | RDGT (Ridgetech, Inc.) | |
|---|---|---|
| 1-year return | +26.3% | -99.5% |
| 5-year return | +95.4% | -100.0% |
| Volatility (ann.) | 19.6% | 120.7% |
| Beta vs S&P 500 | 1.28 | 0.28 |
| Max drawdown (3Y) | -22.8% | -99.9% |
| Market cap | – | – |
| P/E (trailing) | – | – |
| 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 | RDGT |
|---|---|---|
| 2022 | -32.6% | -21.5% |
| 2023 | +54.9% | -93.9% |
| 2024 | +25.6% | -59.8% |
| 2025 | +20.8% | +61.0% |
| 2026 | +17.7% | -99.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are QQQ and RDGT good diversifiers for each other?
Yes: at 0.03, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between QQQ and RDGT?
The QQQ/RDGT correlation stands at 0.03 on a 3-year window (1 year: 0.03, 5 years: 0.08), computed from weekly returns as of 2026-08-27.
Is RDGT a good diversifier for QQQ?
Yes: at 0.03, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of 0.03 mean?
A reading of 0.03 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
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Hubs: QQQ correlations · RDGT correlations
