ACHR vs QMCO: Correlation
Measured on weekly returns over the past three years, Archer Aviation Inc. (ACHR) and Quantum Corporation (QMCO) carry a correlation of 0.51, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ACHR and QMCO?
On 3 years of weekly data the ACHR/QMCO correlation comes out at 0.51, moderate. The relationship has been stable: the 1-year correlation (0.55) sits close to the 3-year figure. The 5-year figure is 0.41, and annualized covariance runs at 8825.9 %².
Among the 26 assets we track against ACHR, QMCO ranks #11 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months QMCO outperformed by 256.6 percentage points (-35.2% for ACHR against +221.4% for QMCO). Note the risk asymmetry: QMCO runs 2.2 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
ACHR vs QMCO: side by side
| ACHR (Archer Aviation Inc.) | QMCO (Quantum Corporation) | |
|---|---|---|
| 1-year return | -35.2% | +221.4% |
| 5-year return | -40.7% | -80.7% |
| Volatility (ann.) | 87.9% | 196.4% |
| Beta vs S&P 500 | 3.18 | 2.45 |
| Max drawdown (3Y) | -67.4% | -93.9% |
| Market cap | $4.6B | $0.9B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ACHR | QMCO |
|---|---|---|
| 2022 | -69.0% | -80.3% |
| 2023 | +228.3% | -67.9% |
| 2024 | +58.8% | +670.3% |
| 2025 | -22.9% | -88.0% |
| 2026 | -21.1% | +265.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ACHR and QMCO good diversifiers for each other?
Somewhat, no more. With 0.51 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between ACHR and QMCO?
As of 2026-08-27, the correlation of weekly returns between ACHR and QMCO is 0.51 over 3 years, 0.55 over 1 year and 0.41 over 5 years.
Is QMCO a good diversifier for ACHR?
Somewhat, no more. With 0.51 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.51 mean?
On the −1 to +1 scale, 0.51 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.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/achr-vs-qmco.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/achr-vs-qmco/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: ACHR correlations · QMCO correlations
