BLFS vs VXZ: Correlation
How closely do BioLife Solutions, Inc. (BLFS) and iPath Series B S&P 500 VIX Mid-Term Futures ETN (VXZ) trade together? Their weekly returns over three years give a correlation of -0.51, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BLFS and VXZ?
Over the past 3 years, BLFS and VXZ moved with a correlation of -0.51, which is negative, meaning they tend to move in opposite directions. The past 12 months show a tighter link (-0.34) than the 3-year average (-0.51). Over 5 years the correlation is -0.38, and the annualized covariance of weekly returns is -647.9 %².
VXZ is close to the least connected end of BLFS's tracked universe, ranking #15 of 15. The last year tells two different stories: BLFS led by 62.4 percentage points, +46.3% for BLFS against -16.1% for VXZ. Risk is not evenly split, since BLFS carries 2.0 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.
BLFS vs VXZ: side by side
| BLFS (BioLife Solutions, Inc.) | VXZ (iPath Series B S&P 500 VIX Mid-Term Futures ETN) | |
|---|---|---|
| 1-year return | +46.3% | -16.1% |
| 5-year return | -36.2% | -53.1% |
| Volatility (ann.) | 50.1% | 25.6% |
| Beta vs S&P 500 | 1.66 | -1.31 |
| Max drawdown (3Y) | -37.0% | -36.4% |
| Market cap | $1.8B | – |
| P/E (trailing) | 37.2 | – |
| Dividend yield | 0.00% | – |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BLFS | VXZ |
|---|---|---|
| 2022 | -51.2% | +0.5% |
| 2023 | -10.7% | -44.0% |
| 2024 | +59.8% | -12.7% |
| 2025 | -6.9% | +5.7% |
| 2026 | +53.8% | -10.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BLFS and VXZ good diversifiers for each other?
By historical standards, yes. A correlation of -0.51 means the two rarely move for the same reasons.
FAQ
What is the correlation between BLFS and VXZ?
The BLFS/VXZ correlation stands at -0.51 on a 3-year window (1 year: -0.34, 5 years: -0.38), computed from weekly returns as of 2026-08-27.
Is VXZ a good diversifier for BLFS?
By historical standards, yes. A correlation of -0.51 means the two rarely move for the same reasons.
What does a correlation of -0.51 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/blfs-vs-vxz.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/blfs-vs-vxz/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: BLFS correlations · VXZ correlations
