ACHR vs SRTA: Correlation
Measured on weekly returns over the past three years, Archer Aviation Inc. (ACHR) and Strata Critical Medical, Inc. (SRTA) carry a correlation of 0.46, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ACHR and SRTA?
On 3 years of weekly data the ACHR/SRTA correlation comes out at 0.46, moderate. The relationship has been stable: the 1-year correlation (0.55) sits close to the 3-year figure. The 5-year figure is 0.44, and annualized covariance runs at 2821.2 %².
Among the 26 assets we track against ACHR, SRTA ranks #20 by 3-year correlation. Correlation aside, the last 12 months split them widely, with SRTA ahead by 69.9 points (-35.2% versus +34.7%).
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 SRTA: side by side
| ACHR (Archer Aviation Inc.) | SRTA (Strata Critical Medical, Inc.) | |
|---|---|---|
| 1-year return | -35.2% | +34.7% |
| 5-year return | -40.7% | -28.6% |
| Volatility (ann.) | 87.9% | 69.8% |
| Beta vs S&P 500 | 3.18 | 2.02 |
| Max drawdown (3Y) | -67.4% | -48.9% |
| Market cap | $4.6B | $0.5B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ACHR | SRTA |
|---|---|---|
| 2022 | -69.0% | -59.5% |
| 2023 | +228.3% | -1.4% |
| 2024 | +58.8% | +20.4% |
| 2025 | -22.9% | +13.2% |
| 2026 | -21.1% | +28.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ACHR and SRTA good diversifiers for each other?
A fair diversifier. At 0.46, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between ACHR and SRTA?
Using weekly returns as of 2026-08-27: 0.46 over 3 years, with 0.55 over the last year and 0.44 over 5 years.
Is SRTA a good diversifier for ACHR?
A fair diversifier. At 0.46, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
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/achr-vs-srta.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/achr-vs-srta/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: ACHR correlations · SRTA correlations
