NTCT vs VXZ: Correlation
How closely do NetScout Systems, Inc. (NTCT) and iPath Series B S&P 500 VIX Mid-Term Futures ETN (VXZ) trade together? Their weekly returns over three years give a correlation of -0.33, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are NTCT and VXZ?
Across a 3-year window, the weekly returns of NTCT and VXZ correlate at -0.33, negative, meaning they tend to move in opposite directions. The past 12 months show a tighter link (-0.10) than the 3-year average (-0.33). Stretching to 5 years gives -0.31, with an annualized covariance of -255.6 %².
Among the 13 assets we track against NTCT, VXZ sits near the bottom by co-movement, at rank #12. The last year tells two different stories: NTCT led by 75.5 percentage points, +59.4% for NTCT against -16.1% for VXZ.
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.
NTCT vs VXZ: side by side
| NTCT (NetScout Systems, Inc.) | VXZ (iPath Series B S&P 500 VIX Mid-Term Futures ETN) | |
|---|---|---|
| 1-year return | +59.4% | -16.1% |
| 5-year return | +42.7% | -53.1% |
| Volatility (ann.) | 30.4% | 25.6% |
| Beta vs S&P 500 | 0.85 | -1.31 |
| Max drawdown (3Y) | -38.4% | -36.4% |
| Market cap | $2.9B | – |
| P/E (trailing) | 23.5 | – |
| Dividend yield | 0.00% | – |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | NTCT | VXZ |
|---|---|---|
| 2022 | -1.7% | +0.5% |
| 2023 | -32.5% | -44.0% |
| 2024 | -1.3% | -12.7% |
| 2025 | +24.9% | +5.7% |
| 2026 | +45.8% | -10.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are NTCT 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 NTCT and VXZ?
The NTCT/VXZ correlation stands at -0.33 on a 3-year window (1 year: -0.10, 5 years: -0.31), computed from weekly returns as of 2026-08-27.
Is VXZ a good diversifier for NTCT?
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/ntct-vs-vxz.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/ntct-vs-vxz/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: NTCT correlations · VXZ correlations
