ACHR vs JOBY: Correlation
Measured on weekly returns over the past three years, Archer Aviation Inc. (ACHR) and Joby Aviation, Inc. (JOBY) carry a correlation of 0.70, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ACHR and JOBY?
Over the past 3 years, ACHR and JOBY moved with a correlation of 0.70, which is strong. Little has changed lately, as the 1-year reading of 0.79 lands near the 3-year figure. Over 5 years the correlation is 0.62, and the annualized covariance of weekly returns is 4324.9 %².
Few assets follow ACHR as closely as JOBY, which ranks #1 of 26 tracked partners. The last year tells two different stories: ACHR led by 15.2 percentage points, -35.2% for ACHR against -50.4% for JOBY.
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 JOBY: side by side
| ACHR (Archer Aviation Inc.) | JOBY (Joby Aviation, Inc.) | |
|---|---|---|
| 1-year return | -35.2% | -50.4% |
| 5-year return | -40.7% | -43.1% |
| Volatility (ann.) | 87.9% | 70.2% |
| Beta vs S&P 500 | 3.18 | 2.37 |
| Max drawdown (3Y) | -67.4% | -67.4% |
| Market cap | $4.6B | $7.1B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ACHR | JOBY |
|---|---|---|
| 2022 | -69.0% | -54.1% |
| 2023 | +228.3% | +98.5% |
| 2024 | +58.8% | +22.3% |
| 2025 | -22.9% | +62.4% |
| 2026 | -21.1% | -45.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ACHR and JOBY good diversifiers for each other?
Only partially. A correlation of 0.70 means ACHR and JOBY share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between ACHR and JOBY?
The ACHR/JOBY correlation stands at 0.70 on a 3-year window (1 year: 0.79, 5 years: 0.62), computed from weekly returns as of 2026-08-27.
Is JOBY a good diversifier for ACHR?
Only partially. A correlation of 0.70 means ACHR and JOBY share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.70 mean?
A reading of 0.70 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-joby.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/achr-vs-joby/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: ACHR correlations · JOBY correlations
