ACIU vs BNAI: Correlation
How closely do AC Immune SA (ACIU) and Brand Engagement Network Inc. (BNAI) trade together? Their weekly returns over three years give a correlation of 0.37, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ACIU and BNAI?
On 3 years of weekly data the ACIU/BNAI correlation comes out at 0.37, moderate. Recent behaviour matches the longer record: 0.31 over 1 year against 0.37 over 3. The 5-year figure is 0.28, and annualized covariance runs at 7809.2 %².
Among the 11 assets we track against ACIU, BNAI ranks #6 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months BNAI outperformed by 275.3 percentage points (+30.9% for ACIU against +306.2% for BNAI). Note the risk asymmetry: BNAI runs 4.5 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.
ACIU vs BNAI: side by side
| ACIU (AC Immune SA) | BNAI (Brand Engagement Network Inc.) | |
|---|---|---|
| 1-year return | +30.9% | +306.2% |
| 5-year return | -61.2% | -87.1% |
| Volatility (ann.) | 69.0% | 309.0% |
| Beta vs S&P 500 | 1.20 | 0.09 |
| Max drawdown (3Y) | -70.4% | -99.1% |
| 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 | ACIU | BNAI |
|---|---|---|
| 2022 | -58.8% | +3.5% |
| 2023 | +145.1% | +5.2% |
| 2024 | -46.0% | -90.8% |
| 2025 | +16.3% | -76.2% |
| 2026 | -13.7% | +437.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ACIU and BNAI good diversifiers for each other?
A fair diversifier. At 0.37, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between ACIU and BNAI?
Using weekly returns as of 2026-08-27: 0.37 over 3 years, with 0.31 over the last year and 0.28 over 5 years.
Is BNAI a good diversifier for ACIU?
A fair diversifier. At 0.37, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.37 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/aciu-vs-bnai.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/aciu-vs-bnai/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: ACIU correlations · BNAI correlations
