ARQQ vs QQQ: Correlation
Measured on weekly returns over the past three years, Arqit Quantum Inc. (ARQQ) and Invesco QQQ Trust (QQQ) 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 ARQQ and QQQ?
Over the past 3 years, ARQQ and QQQ moved with a correlation of 0.36, which is moderate. The link has tightened recently: the 1-year correlation (0.50) runs above the 3-year figure (0.36). Over 5 years the correlation is 0.28, and the annualized covariance of weekly returns is 956.6 %².
By 3-year correlation, QQQ places #11 of the 16 assets tracked against ARQQ. The last year tells two different stories: QQQ led by 55.7 percentage points, -29.4% for ARQQ against +26.3% for QQQ. One caveat on sizing: ARQQ is 6.9 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
ARQQ vs QQQ: side by side
| ARQQ (Arqit Quantum Inc.) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | -29.4% | +26.3% |
| 5-year return | -91.4% | +95.4% |
| Volatility (ann.) | 135.6% | 19.6% |
| Beta vs S&P 500 | 3.18 | 1.28 |
| Max drawdown (3Y) | -86.7% | -22.8% |
| Market cap | $0.4B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 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 | ARQQ | QQQ |
|---|---|---|
| 2022 | -84.9% | -32.6% |
| 2023 | -86.9% | +54.9% |
| 2024 | +227.8% | +25.6% |
| 2025 | -43.7% | +20.8% |
| 2026 | -1.9% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ARQQ and QQQ 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 ARQQ and QQQ?
As of 2026-08-27, the correlation of weekly returns between ARQQ and QQQ is 0.36 over 3 years, 0.50 over 1 year and 0.28 over 5 years.
Is QQQ a good diversifier for ARQQ?
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.
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Related comparisons
Hubs: ARQQ correlations · QQQ correlations
