AIFF vs BESS: Correlation
Firefly Neuroscience, Inc. (AIFF) and Bimergen Energy Corporation (BESS) show a moderate relationship: their 3-year correlation of weekly returns is 0.50.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AIFF and BESS?
Across a 3-year window, the weekly returns of AIFF and BESS correlate at 0.50, moderate. The link has loosened recently: the 1-year correlation (-0.17) runs below the 3-year figure (0.50). Stretching to 5 years gives 0.45, with an annualized covariance of 489842.8 %².
BESS is one of the assets that tracks AIFF most closely: it ranks #2 out of the 15 assets we track against AIFF. On 12-month performance BESS holds a 8.5-point edge, -58.9% against -50.4%. One caveat on sizing: BESS is 27.0 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
AIFF vs BESS: side by side
| AIFF (Firefly Neuroscience, Inc.) | BESS (Bimergen Energy Corporation) | |
|---|---|---|
| 1-year return | -58.9% | -50.4% |
| 5-year return | -98.8% | -87.7% |
| Volatility (ann.) | 190.4% | 5140.2% |
| Beta vs S&P 500 | 1.78 | 17.01 |
| Max drawdown (3Y) | -95.9% | -99.5% |
| Market cap | – | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | AIFF | BESS |
|---|---|---|
| 2022 | -90.3% | -30.0% |
| 2023 | -64.8% | -14.3% |
| 2024 | -47.7% | +16.7% |
| 2025 | -66.8% | +7.1% |
| 2026 | +22.7% | -70.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AIFF and BESS good diversifiers for each other?
To a limited degree. At 0.50 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between AIFF and BESS?
As of 2026-08-27, the correlation of weekly returns between AIFF and BESS is 0.50 over 3 years, -0.17 over 1 year and 0.45 over 5 years.
Is BESS a good diversifier for AIFF?
To a limited degree. At 0.50 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.50 mean?
A reading of 0.50 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/aiff-vs-bess.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/aiff-vs-bess/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: AIFF correlations · BESS correlations
