NSSC vs VXX: Correlation
NAPCO Security Technologies, Inc. (NSSC) and iPath Series B S&P 500 VIX Short-Term Futures ETN (VXX) show a negative relationship: their 3-year correlation of weekly returns is -0.41.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are NSSC and VXX?
On 3 years of weekly data the NSSC/VXX correlation comes out at -0.41, negative, meaning they tend to move in opposite directions. Little has changed lately, as the 1-year reading of -0.45 lands near the 3-year figure. The 5-year figure is -0.37, and annualized covariance runs at -1285.7 %².
VXX is close to the least connected end of NSSC's tracked universe, ranking #13 of 14. Correlation aside, the last 12 months split them widely, with NSSC ahead by 42.9 points (-6.8% versus -49.7%).
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.
NSSC vs VXX: side by side
| NSSC (NAPCO Security Technologies, Inc.) | VXX (iPath Series B S&P 500 VIX Short-Term Futures ETN) | |
|---|---|---|
| 1-year return | -6.8% | -49.7% |
| 5-year return | +91.1% | -95.6% |
| Volatility (ann.) | 51.3% | 60.9% |
| Beta vs S&P 500 | 1.46 | -3.31 |
| Max drawdown (3Y) | -65.4% | -83.3% |
| Market cap | $1.3B | – |
| P/E (trailing) | 29.6 | – |
| Dividend yield | 1.62% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | NSSC | VXX |
|---|---|---|
| 2022 | +10.0% | -23.8% |
| 2023 | +25.6% | -72.5% |
| 2024 | +5.0% | -26.2% |
| 2025 | +19.2% | -42.2% |
| 2026 | -14.7% | -31.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are NSSC and VXX good diversifiers for each other?
Yes. With a correlation of -0.41, NSSC and VXX have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between NSSC and VXX?
Using weekly returns as of 2026-08-27: -0.41 over 3 years, with -0.45 over the last year and -0.37 over 5 years.
Is VXX a good diversifier for NSSC?
Yes. With a correlation of -0.41, NSSC and VXX have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.41 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/nssc-vs-vxx.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/nssc-vs-vxx/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: NSSC correlations · VXX correlations
