IONQ vs QUBT: Correlation
IonQ, Inc. (IONQ) and Quantum Computing Inc. (QUBT) show a moderate relationship: their 3-year correlation of weekly returns is 0.55.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are IONQ and QUBT?
Over the past 3 years, IONQ and QUBT moved with a correlation of 0.55, which is moderate. The past 12 months show a tighter link (0.81) than the 3-year average (0.55). Over 5 years the correlation is 0.48, and the annualized covariance of weekly returns is 8818.2 %².
Among the 22 assets we track against IONQ, QUBT ranks #5 by 3-year correlation. Correlation aside, the last 12 months split them widely, with IONQ ahead by 44.1 points (+2.5% versus -41.6%). One caveat on sizing: QUBT is 1.6 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.
IONQ vs QUBT: side by side
| IONQ (IonQ, Inc.) | QUBT (Quantum Computing Inc.) | |
|---|---|---|
| 1-year return | +2.5% | -41.6% |
| 5-year return | +325.5% | +13.8% |
| Volatility (ann.) | 100.0% | 160.7% |
| Beta vs S&P 500 | 3.23 | 2.31 |
| Max drawdown (3Y) | -67.6% | -82.4% |
| Market cap | $17.2B | $2.0B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | IONQ | QUBT |
|---|---|---|
| 2022 | -79.3% | -55.7% |
| 2023 | +259.1% | -39.5% |
| 2024 | +237.1% | +1712.7% |
| 2025 | +7.4% | -38.0% |
| 2026 | -5.4% | -15.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are IONQ and QUBT good diversifiers for each other?
Somewhat, no more. With 0.55 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between IONQ and QUBT?
The IONQ/QUBT correlation stands at 0.55 on a 3-year window (1 year: 0.81, 5 years: 0.48), computed from weekly returns as of 2026-08-27.
Is QUBT a good diversifier for IONQ?
Somewhat, no more. With 0.55 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.55 mean?
A reading of 0.55 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/ionq-vs-qubt.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/ionq-vs-qubt/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: IONQ correlations · QUBT correlations
