ACB vs BILL: Correlation
How closely do Aurora Cannabis Inc. (ACB) and BILL Holdings, Inc. (BILL) trade together? Their weekly returns over three years give a correlation of -0.20, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ACB and BILL?
Over the past 3 years, ACB and BILL moved with a correlation of -0.20, which is negative, meaning they tend to move in opposite directions. The link has tightened recently: the 1-year correlation (0.09) runs above the 3-year figure (-0.20). Over 5 years the correlation is 0.04, and the annualized covariance of weekly returns is -1090.6 %².
Out of 15 assets tracked against ACB, BILL lands near the bottom at #13. Correlation aside, the last 12 months split them widely, with BILL ahead by 42.2 points (-24.8% versus +17.4%). Risk is not evenly split, since ACB carries 1.7 times the volatility of the other side.
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 BILL: side by side
| ACB (Aurora Cannabis Inc.) | BILL (BILL Holdings, Inc.) | |
|---|---|---|
| 1-year return | -24.8% | +17.4% |
| 5-year return | -94.4% | -82.7% |
| Volatility (ann.) | 94.9% | 57.0% |
| Beta vs S&P 500 | 1.23 | 1.26 |
| Max drawdown (3Y) | -73.8% | -73.0% |
| Market cap | $0.3B | $4.9B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ACB | BILL |
|---|---|---|
| 2022 | -82.9% | -56.3% |
| 2023 | -48.4% | -25.1% |
| 2024 | -10.7% | +3.8% |
| 2025 | -0.7% | -35.6% |
| 2026 | -5.0% | -10.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ACB and BILL good diversifiers for each other?
Yes. With a correlation of -0.20, ACB and BILL have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between ACB and BILL?
As of 2026-08-27, the correlation of weekly returns between ACB and BILL is -0.20 over 3 years, 0.09 over 1 year and 0.04 over 5 years.
Is BILL a good diversifier for ACB?
Yes. With a correlation of -0.20, ACB and BILL have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.20 mean?
On the −1 to +1 scale, -0.20 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/acb-vs-bill.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/acb-vs-bill/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: ACB correlations · BILL correlations
