ACB vs RPID: Correlation
Aurora Cannabis Inc. (ACB) and Rapid Micro Biosystems, Inc. (RPID) show a moderate relationship: their 3-year correlation of weekly returns is 0.33.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ACB and RPID?
Across a 3-year window, the weekly returns of ACB and RPID correlate at 0.33, moderate. The link has loosened recently: the 1-year correlation (0.09) runs below the 3-year figure (0.33). Stretching to 5 years gives 0.25, with an annualized covariance of 2725.6 %².
Within ACB's tracked universe of 15 assets, RPID comes in at #9 by 3-year correlation. Over the last 12 months ACB came out ahead by 12.3 percentage points (-24.8% against -37.1%).
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.
ACB vs RPID: side by side
| ACB (Aurora Cannabis Inc.) | RPID (Rapid Micro Biosystems, Inc.) | |
|---|---|---|
| 1-year return | -24.8% | -37.1% |
| 5-year return | -94.4% | -92.2% |
| Volatility (ann.) | 94.9% | 85.8% |
| Beta vs S&P 500 | 1.23 | 0.88 |
| Max drawdown (3Y) | -73.8% | -66.9% |
| Market cap | $0.3B | $0.1B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ACB | RPID |
|---|---|---|
| 2022 | -82.9% | -89.4% |
| 2023 | -48.4% | -34.5% |
| 2024 | -10.7% | +21.6% |
| 2025 | -0.7% | +222.2% |
| 2026 | -5.0% | -44.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ACB and RPID good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.33 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between ACB and RPID?
Using weekly returns as of 2026-08-27: 0.33 over 3 years, with 0.09 over the last year and 0.25 over 5 years.
Is RPID a good diversifier for ACB?
Yes, to a useful degree: a correlation of 0.33 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.33 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/acb-vs-rpid.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/acb-vs-rpid/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: ACB correlations · RPID correlations
