CERS vs VXZ: Correlation
Cerus Corporation (CERS) and iPath Series B S&P 500 VIX Mid-Term Futures ETN (VXZ) show a negative relationship: their 3-year correlation of weekly returns is -0.36.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CERS and VXZ?
Over the past 3 years, CERS and VXZ moved with a correlation of -0.36, which is negative, meaning they tend to move in opposite directions. Little has changed lately, as the 1-year reading of -0.28 lands near the 3-year figure. Over 5 years the correlation is -0.35, and the annualized covariance of weekly returns is -657.2 %².
Among the 10 assets we track against CERS, VXZ sits near the bottom by co-movement, at rank #10. Their recent paths diverged sharply: over the last 12 months CERS outperformed by 123.7 percentage points (+107.6% for CERS against -16.1% for VXZ). Note the risk asymmetry: CERS runs 2.8 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.
CERS vs VXZ: side by side
| CERS (Cerus Corporation) | VXZ (iPath Series B S&P 500 VIX Mid-Term Futures ETN) | |
|---|---|---|
| 1-year return | +107.6% | -16.1% |
| 5-year return | -57.3% | -53.1% |
| Volatility (ann.) | 71.0% | 25.6% |
| Beta vs S&P 500 | 2.01 | -1.31 |
| Max drawdown (3Y) | -52.1% | -36.4% |
| Market cap | $0.5B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | – |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CERS | VXZ |
|---|---|---|
| 2022 | -46.4% | +0.5% |
| 2023 | -40.8% | -44.0% |
| 2024 | -28.7% | -12.7% |
| 2025 | +33.8% | +5.7% |
| 2026 | +32.0% | -10.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CERS and VXZ good diversifiers for each other?
By historical standards, yes. A correlation of -0.36 means the two rarely move for the same reasons.
FAQ
What is the correlation between CERS and VXZ?
As of 2026-08-27, the correlation of weekly returns between CERS and VXZ is -0.36 over 3 years, -0.28 over 1 year and -0.35 over 5 years.
Is VXZ a good diversifier for CERS?
By historical standards, yes. A correlation of -0.36 means the two rarely move for the same reasons.
What does a correlation of -0.36 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/cers-vs-vxz.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/cers-vs-vxz/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: CERS correlations · VXZ correlations
