CERS vs VXX: Correlation
Measured on weekly returns over the past three years, Cerus Corporation (CERS) and iPath Series B S&P 500 VIX Short-Term Futures ETN (VXX) carry a correlation of -0.36, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CERS and VXX?
Over the past 3 years, CERS and VXX 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 -0.33, and the annualized covariance of weekly returns is -1551.0 %².
VXX is close to the least connected end of CERS's tracked universe, ranking #9 of 10. The last year tells two different stories: CERS led by 157.3 percentage points, +107.6% for CERS against -49.7% for VXX.
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 VXX: side by side
| CERS (Cerus Corporation) | VXX (iPath Series B S&P 500 VIX Short-Term Futures ETN) | |
|---|---|---|
| 1-year return | +107.6% | -49.7% |
| 5-year return | -57.3% | -95.6% |
| Volatility (ann.) | 71.0% | 60.9% |
| Beta vs S&P 500 | 2.01 | -3.31 |
| Max drawdown (3Y) | -52.1% | -83.3% |
| Market cap | $0.5B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CERS | VXX |
|---|---|---|
| 2022 | -46.4% | -23.8% |
| 2023 | -40.8% | -72.5% |
| 2024 | -28.7% | -26.2% |
| 2025 | +33.8% | -42.2% |
| 2026 | +32.0% | -31.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CERS and VXX 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 VXX?
As of 2026-08-27, the correlation of weekly returns between CERS and VXX is -0.36 over 3 years, -0.28 over 1 year and -0.33 over 5 years.
Is VXX 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?
A reading of -0.36 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/cers-vs-vxx.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/cers-vs-vxx/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: CERS correlations · VXX correlations
