CRL vs VXZ: Correlation
Measured on weekly returns over the past three years, Charles River Laboratories (CRL) and iPath Series B S&P 500 VIX Mid-Term Futures ETN (VXZ) carry a correlation of -0.33, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CRL and VXZ?
On 3 years of weekly data the CRL/VXZ correlation comes out at -0.33, negative, meaning they tend to move in opposite directions. The link has loosened recently: the 1-year correlation (-0.45) runs below the 3-year figure (-0.33). The 5-year figure is -0.39, and annualized covariance runs at -402.8 %².
Among the 33 assets we track against CRL, VXZ sits near the bottom by co-movement, at rank #33. The last year tells two different stories: CRL led by 98.2 percentage points, +82.1% for CRL against -16.1% for VXZ. Risk is not evenly split, since CRL carries 1.9 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.
CRL vs VXZ: side by side
| CRL (Charles River Laboratories) | VXZ (iPath Series B S&P 500 VIX Mid-Term Futures ETN) | |
|---|---|---|
| 1-year return | +82.1% | -16.1% |
| 5-year return | -33.3% | -53.1% |
| Volatility (ann.) | 47.9% | 25.6% |
| Beta vs S&P 500 | 0.92 | -1.31 |
| Max drawdown (3Y) | -63.5% | -36.4% |
| Market cap | $14.3B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | – |
| Sector / category | Health Care | US Listed |
Year-by-year returns
| Year | CRL | VXZ |
|---|---|---|
| 2022 | -42.2% | +0.5% |
| 2023 | +8.5% | -44.0% |
| 2024 | -21.9% | -12.7% |
| 2025 | +8.1% | +5.7% |
| 2026 | +48.6% | -10.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CRL and VXZ good diversifiers for each other?
By historical standards, yes. A correlation of -0.33 means the two rarely move for the same reasons.
FAQ
What is the correlation between CRL and VXZ?
The CRL/VXZ correlation stands at -0.33 on a 3-year window (1 year: -0.45, 5 years: -0.39), computed from weekly returns as of 2026-08-27.
Is VXZ a good diversifier for CRL?
By historical standards, yes. A correlation of -0.33 means the two rarely move for the same reasons.
What does a correlation of -0.33 mean?
A reading of -0.33 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/crl-vs-vxz.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/crl-vs-vxz/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: CRL correlations · VXZ correlations
