VXZ vs WPRT: Correlation
iPath Series B S&P 500 VIX Mid-Term Futures ETN (VXZ) and Westport Fuel Systems Inc (WPRT) show a negative relationship: their 3-year correlation of weekly returns is -0.42.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are VXZ and WPRT?
On 3 years of weekly data the VXZ/WPRT correlation comes out at -0.42, negative, meaning they tend to move in opposite directions. Little has changed lately, as the 1-year reading of -0.35 lands near the 3-year figure. The 5-year figure is -0.43, and annualized covariance runs at -551.7 %².
Among the 2840 assets we track against VXZ, WPRT ranks #2085 by 3-year correlation. Correlation aside, the last 12 months split them widely, with VXZ ahead by 19.4 points (-16.1% versus -35.5%). Risk is not evenly split, since WPRT 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.
VXZ vs WPRT: side by side
| VXZ (iPath Series B S&P 500 VIX Mid-Term Futures ETN) | WPRT (Westport Fuel Systems Inc) | |
|---|---|---|
| 1-year return | -16.1% | -35.5% |
| 5-year return | -53.1% | -95.2% |
| Volatility (ann.) | 25.6% | 51.7% |
| Beta vs S&P 500 | -1.31 | 1.44 |
| Max drawdown (3Y) | -36.4% | -80.0% |
| Market cap | – | – |
| P/E (trailing) | – | – |
| Dividend yield | – | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | VXZ | WPRT |
|---|---|---|
| 2022 | +0.5% | -67.5% |
| 2023 | -44.0% | -14.0% |
| 2024 | -12.7% | -45.9% |
| 2025 | +5.7% | -56.1% |
| 2026 | -10.5% | +17.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are VXZ and WPRT good diversifiers for each other?
Yes: at -0.42, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between VXZ and WPRT?
As of 2026-08-27, the correlation of weekly returns between VXZ and WPRT is -0.42 over 3 years, -0.35 over 1 year and -0.43 over 5 years.
Is WPRT a good diversifier for VXZ?
Yes: at -0.42, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.42 mean?
A reading of -0.42 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/vxz-vs-wprt.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/vxz-vs-wprt/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: VXZ correlations · WPRT correlations
