ARQQ vs RTB: Correlation
Measured on weekly returns over the past three years, Arqit Quantum Inc. (ARQQ) and RTB Digital, Inc. (RTB) carry a correlation of 0.41, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ARQQ and RTB?
Across a 3-year window, the weekly returns of ARQQ and RTB correlate at 0.41, moderate. The past 12 months show a tighter link (0.66) than the 3-year average (0.41). Stretching to 5 years gives 0.31, with an annualized covariance of 8299.4 %².
Among the 16 assets we track against ARQQ, RTB ranks #9 by 3-year correlation. The last year tells two different stories: RTB led by 44.9 percentage points, -29.4% for ARQQ against +15.5% for RTB.
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 RTB: side by side
| ARQQ (Arqit Quantum Inc.) | RTB (RTB Digital, Inc.) | |
|---|---|---|
| 1-year return | -29.4% | +15.5% |
| 5-year return | -91.4% | -99.6% |
| Volatility (ann.) | 135.6% | 150.2% |
| Beta vs S&P 500 | 3.18 | 2.93 |
| Max drawdown (3Y) | -86.7% | -99.2% |
| Market cap | $0.4B | $0.2B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ARQQ | RTB |
|---|---|---|
| 2022 | -84.9% | -89.0% |
| 2023 | -86.9% | -9.6% |
| 2024 | +227.8% | -68.8% |
| 2025 | -43.7% | -87.7% |
| 2026 | -1.9% | +131.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ARQQ and RTB good diversifiers for each other?
Reasonably. At 0.41, ARQQ and RTB keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between ARQQ and RTB?
The ARQQ/RTB correlation stands at 0.41 on a 3-year window (1 year: 0.66, 5 years: 0.31), computed from weekly returns as of 2026-08-27.
Is RTB a good diversifier for ARQQ?
Reasonably. At 0.41, ARQQ and RTB keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.41 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/arqq-vs-rtb.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/arqq-vs-rtb/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: ARQQ correlations · RTB correlations
