PTC vs VXZ: Correlation
Measured on weekly returns over the past three years, PTC Inc. (PTC) and iPath Series B S&P 500 VIX Mid-Term Futures ETN (VXZ) carry a correlation of -0.40, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PTC and VXZ?
Across a 3-year window, the weekly returns of PTC and VXZ correlate at -0.40, negative, meaning they tend to move in opposite directions. Lately the two have moved closer together, with the 1-year correlation at -0.20 versus -0.40 over 3 years. Stretching to 5 years gives -0.44, with an annualized covariance of -295.7 %².
VXZ is close to the least connected end of PTC's tracked universe, ranking #31 of 32. Over the last 12 months VXZ came out ahead by 10.5 percentage points (-26.6% against -16.1%).
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.
PTC vs VXZ: side by side
| PTC (PTC Inc.) | VXZ (iPath Series B S&P 500 VIX Mid-Term Futures ETN) | |
|---|---|---|
| 1-year return | -26.6% | -16.1% |
| 5-year return | +20.0% | -53.1% |
| Volatility (ann.) | 28.8% | 25.6% |
| Beta vs S&P 500 | 1.02 | -1.31 |
| Max drawdown (3Y) | -48.1% | -36.4% |
| Market cap | $17.2B | – |
| P/E (trailing) | 14.7 | – |
| Dividend yield | 0.00% | – |
| Sector / category | Information Technology | US Listed |
Year-by-year returns
| Year | PTC | VXZ |
|---|---|---|
| 2022 | -0.9% | +0.5% |
| 2023 | +45.8% | -44.0% |
| 2024 | +5.1% | -12.7% |
| 2025 | -5.3% | +5.7% |
| 2026 | -8.8% | -10.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PTC and VXZ good diversifiers for each other?
Yes. With a correlation of -0.40, PTC and VXZ have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between PTC and VXZ?
As of 2026-08-27, the correlation of weekly returns between PTC and VXZ is -0.40 over 3 years, -0.20 over 1 year and -0.44 over 5 years.
Is VXZ a good diversifier for PTC?
Yes. With a correlation of -0.40, PTC and VXZ have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.40 mean?
A reading of -0.40 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/ptc-vs-vxz.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/ptc-vs-vxz/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: PTC correlations · VXZ correlations
