ACHR vs UMAC: Correlation
Measured on weekly returns over the past three years, Archer Aviation Inc. (ACHR) and Unusual Machines, Inc. (UMAC) carry a correlation of 0.56, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ACHR and UMAC?
On 3 years of weekly data the ACHR/UMAC correlation comes out at 0.56, moderate. Recent behaviour matches the longer record: 0.56 over 1 year against 0.56 over 3. The 5-year figure is n/a, and annualized covariance runs at 12639.9 %².
Among the 26 assets we track against ACHR, UMAC ranks #4 by 3-year correlation. The last year tells two different stories: UMAC led by 192.3 percentage points, -35.2% for ACHR against +157.1% for UMAC. Note the risk asymmetry: UMAC runs 2.8 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 UMAC: side by side
| ACHR (Archer Aviation Inc.) | UMAC (Unusual Machines, Inc.) | |
|---|---|---|
| 1-year return | -35.2% | +157.1% |
| 5-year return | -40.7% | n/a |
| Volatility (ann.) | 87.9% | 248.9% |
| Beta vs S&P 500 | 3.18 | 3.43 |
| Max drawdown (3Y) | -67.4% | -75.6% |
| Market cap | $4.6B | $1.3B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ACHR | UMAC |
|---|---|---|
| 2022 | -69.0% | – |
| 2023 | +228.3% | – |
| 2024 | +58.8% | – |
| 2025 | -22.9% | -24.3% |
| 2026 | -21.1% | +106.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ACHR and UMAC good diversifiers for each other?
To a limited degree. At 0.56 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between ACHR and UMAC?
Using weekly returns as of 2026-08-27: 0.56 over 3 years, with 0.56 over the last year and n/a over 5 years.
Is UMAC a good diversifier for ACHR?
To a limited degree. At 0.56 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.56 mean?
On the −1 to +1 scale, 0.56 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-umac.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/achr-vs-umac/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: ACHR correlations · UMAC correlations
