BIIB vs VGAS: Correlation
How closely do Biogen (BIIB) and Verde Clean Fuels, Inc. (VGAS) trade together? Their weekly returns over three years give a correlation of -0.22, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BIIB and VGAS?
Over the past 3 years, BIIB and VGAS moved with a correlation of -0.22, which is negative, meaning they tend to move in opposite directions. Little has changed lately, as the 1-year reading of -0.24 lands near the 3-year figure. Over 5 years the correlation is -0.15, and the annualized covariance of weekly returns is -622.3 %².
Out of 32 assets tracked against BIIB, VGAS lands near the bottom at #29. The last year tells two different stories: BIIB led by 116.9 percentage points, +62.4% for BIIB against -54.5% for VGAS. Note the risk asymmetry: VGAS runs 3.1 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.
BIIB vs VGAS: side by side
| BIIB (Biogen) | VGAS (Verde Clean Fuels, Inc.) | |
|---|---|---|
| 1-year return | +62.4% | -54.5% |
| 5-year return | -35.7% | -86.2% |
| Volatility (ann.) | 30.1% | 94.3% |
| Beta vs S&P 500 | 0.53 | 0.91 |
| Max drawdown (3Y) | -57.7% | -82.3% |
| Market cap | $32.7B | $0.1B |
| P/E (trailing) | 39.2 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | Health Care | US Listed |
Year-by-year returns
| Year | BIIB | VGAS |
|---|---|---|
| 2022 | +15.4% | -8.2% |
| 2023 | -6.6% | -74.1% |
| 2024 | -40.9% | +72.2% |
| 2025 | +15.1% | -49.3% |
| 2026 | +25.9% | -34.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BIIB and VGAS good diversifiers for each other?
Yes: at -0.22, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between BIIB and VGAS?
Using weekly returns as of 2026-08-27: -0.22 over 3 years, with -0.24 over the last year and -0.15 over 5 years.
Is VGAS a good diversifier for BIIB?
Yes: at -0.22, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.22 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/biib-vs-vgas.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/biib-vs-vgas/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: BIIB correlations · VGAS correlations
