AMLX vs RFAI: Correlation
Amylyx Pharmaceuticals, Inc. (AMLX) and RF Acquisition Corp II (RFAI) show a moderate relationship: their 3-year correlation of weekly returns is 0.58.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AMLX and RFAI?
Over the past 3 years, AMLX and RFAI moved with a correlation of 0.58, which is moderate. The past 12 months show a tighter link (0.80) than the 3-year average (0.58). Over 5 years the correlation is n/a, and the annualized covariance of weekly returns is 14944.8 %².
In AMLX's tracked universe of 17 assets, RFAI sits right near the top at #1. Their recent paths diverged sharply: over the last 12 months RFAI outperformed by 96.1 percentage points (+293.4% for AMLX against +389.5% for RFAI). Risk is not evenly split, since RFAI carries 2.9 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.
AMLX vs RFAI: side by side
| AMLX (Amylyx Pharmaceuticals, Inc.) | RFAI (RF Acquisition Corp II) | |
|---|---|---|
| 1-year return | +293.4% | +389.5% |
| 5-year return | +105.8% | n/a |
| Volatility (ann.) | 97.8% | 288.3% |
| Beta vs S&P 500 | 1.29 | -1.62 |
| Max drawdown (3Y) | -92.6% | -16.5% |
| Market cap | $4.1B | $0.4B |
| P/E (trailing) | – | 399.9 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | AMLX | RFAI |
|---|---|---|
| 2023 | -60.2% | – |
| 2024 | -74.3% | – |
| 2025 | +219.6% | +5.2% |
| 2026 | +207.8% | +383.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AMLX and RFAI good diversifiers for each other?
Only partially. A correlation of 0.58 means AMLX and RFAI 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 AMLX and RFAI?
As of 2026-08-27, the correlation of weekly returns between AMLX and RFAI is 0.58 over 3 years, 0.80 over 1 year and n/a over 5 years.
Is RFAI a good diversifier for AMLX?
Only partially. A correlation of 0.58 means AMLX and RFAI share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.58 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/amlx-vs-rfai.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/amlx-vs-rfai/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: AMLX correlations · RFAI correlations
