BIIB vs BME: Correlation
Biogen (BIIB) and Blackrock Health Sciences Trust (BME) show a moderate relationship: their 3-year correlation of weekly returns is 0.55.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BIIB and BME?
Across a 3-year window, the weekly returns of BIIB and BME correlate at 0.55, moderate. The relationship has been stable: the 1-year correlation (0.49) sits close to the 3-year figure. Stretching to 5 years gives 0.42, with an annualized covariance of 239.8 %².
BME is one of the assets that tracks BIIB most closely: it ranks #3 out of the 32 assets we track against BIIB. Their recent paths diverged sharply: over the last 12 months BIIB outperformed by 26.4 percentage points (+62.4% for BIIB against +36.0% for BME). One caveat on sizing: BIIB is 2.1 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.
BIIB vs BME: side by side
| BIIB (Biogen) | BME (Blackrock Health Sciences Trust) | |
|---|---|---|
| 1-year return | +62.4% | +36.0% |
| 5-year return | -35.7% | +33.5% |
| Volatility (ann.) | 30.1% | 14.4% |
| Beta vs S&P 500 | 0.53 | 0.45 |
| Max drawdown (3Y) | -57.7% | -14.4% |
| Market cap | $32.7B | – |
| P/E (trailing) | 39.2 | 7.8 |
| Dividend yield | 0.00% | 6.80% |
| Sector / category | Health Care | US Listed |
Year-by-year returns
| Year | BIIB | BME |
|---|---|---|
| 2022 | +15.4% | -4.6% |
| 2023 | -6.6% | -1.1% |
| 2024 | -40.9% | -0.1% |
| 2025 | +15.1% | +17.9% |
| 2026 | +25.9% | +17.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BIIB and BME good diversifiers for each other?
Only partially. A correlation of 0.55 means BIIB and BME 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 BIIB and BME?
Using weekly returns as of 2026-08-27: 0.55 over 3 years, with 0.49 over the last year and 0.42 over 5 years.
Is BME a good diversifier for BIIB?
Only partially. A correlation of 0.55 means BIIB and BME share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.55 mean?
On the −1 to +1 scale, 0.55 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.
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Related comparisons
Hubs: BIIB correlations · BME correlations
