SRTA vs UMAC: Correlation
How closely do Strata Critical Medical, Inc. (SRTA) and Unusual Machines, Inc. (UMAC) trade together? Their weekly returns over three years give a correlation of 0.46, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SRTA and UMAC?
Over the past 3 years, SRTA and UMAC moved with a correlation of 0.46, which is moderate. Lately the two have drifted apart, with the 1-year correlation at 0.35 versus 0.46 over 3 years. Over 5 years the correlation is n/a, and the annualized covariance of weekly returns is 8110.7 %².
In SRTA's tracked universe of 11 assets, UMAC sits right near the top at #3. Their recent paths diverged sharply: over the last 12 months UMAC outperformed by 122.4 percentage points (+34.7% for SRTA against +157.1% for UMAC). Note the risk asymmetry: UMAC runs 3.6 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.
SRTA vs UMAC: side by side
| SRTA (Strata Critical Medical, Inc.) | UMAC (Unusual Machines, Inc.) | |
|---|---|---|
| 1-year return | +34.7% | +157.1% |
| 5-year return | -28.6% | n/a |
| Volatility (ann.) | 69.8% | 248.9% |
| Beta vs S&P 500 | 2.02 | 3.43 |
| Max drawdown (3Y) | -48.9% | -75.6% |
| Market cap | $0.5B | $1.3B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | SRTA | UMAC |
|---|---|---|
| 2022 | -59.5% | – |
| 2023 | -1.4% | – |
| 2024 | +20.4% | – |
| 2025 | +13.2% | -24.3% |
| 2026 | +28.3% | +106.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SRTA and UMAC good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.46 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between SRTA and UMAC?
As of 2026-08-27, the correlation of weekly returns between SRTA and UMAC is 0.46 over 3 years, 0.35 over 1 year and n/a over 5 years.
Is UMAC a good diversifier for SRTA?
Yes, to a useful degree: a correlation of 0.46 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.46 mean?
A reading of 0.46 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/srta-vs-umac.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/srta-vs-umac/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: SRTA correlations · UMAC correlations
