BIIB vs MTEK: Correlation
How closely do Biogen (BIIB) and Maris-Tech Ltd. (MTEK) trade together? Their weekly returns over three years give a correlation of -0.18, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BIIB and MTEK?
On 3 years of weekly data the BIIB/MTEK correlation comes out at -0.18, negative, meaning they tend to move in opposite directions. Lately the two have drifted apart, with the 1-year correlation at -0.37 versus -0.18 over 3 years. The 5-year figure is -0.10, and annualized covariance runs at -475.4 %².
Among the 32 assets we track against BIIB, MTEK ranks #23 by 3-year correlation. The last year tells two different stories: BIIB led by 121.1 percentage points, +62.4% for BIIB against -58.7% for MTEK. One caveat on sizing: MTEK is 2.9 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 MTEK: side by side
| BIIB (Biogen) | MTEK (Maris-Tech Ltd.) | |
|---|---|---|
| 1-year return | +62.4% | -58.7% |
| 5-year return | -35.7% | -65.4% |
| Volatility (ann.) | 30.1% | 86.5% |
| Beta vs S&P 500 | 0.53 | 1.15 |
| Max drawdown (3Y) | -57.7% | -83.2% |
| Market cap | $32.7B | – |
| P/E (trailing) | 39.2 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | Health Care | US Listed |
Year-by-year returns
| Year | BIIB | MTEK |
|---|---|---|
| 2022 | +15.4% | – |
| 2023 | -6.6% | +25.3% |
| 2024 | -40.9% | +384.6% |
| 2025 | +15.1% | -77.0% |
| 2026 | +25.9% | -6.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BIIB and MTEK good diversifiers for each other?
Yes: at -0.18, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between BIIB and MTEK?
The BIIB/MTEK correlation stands at -0.18 on a 3-year window (1 year: -0.37, 5 years: -0.10), computed from weekly returns as of 2026-08-27.
Is MTEK a good diversifier for BIIB?
Yes: at -0.18, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.18 mean?
A reading of -0.18 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/biib-vs-mtek.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/biib-vs-mtek/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: BIIB correlations · MTEK correlations
