SOTK vs VXX: Correlation
How closely do Sono-Tek Corporation (SOTK) and iPath Series B S&P 500 VIX Short-Term Futures ETN (VXX) trade together? Their weekly returns over three years give a correlation of -0.22, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SOTK and VXX?
Across a 3-year window, the weekly returns of SOTK and VXX correlate at -0.22, negative, meaning they tend to move in opposite directions. The link has tightened recently: the 1-year correlation (-0.10) runs above the 3-year figure (-0.22). Stretching to 5 years gives -0.18, with an annualized covariance of -446.6 %².
Out of 10 assets tracked against SOTK, VXX lands near the bottom at #10. The last year tells two different stories: SOTK led by 99.8 percentage points, +50.1% for SOTK against -49.7% for VXX. Risk is not evenly split, since VXX carries 1.8 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.
SOTK vs VXX: side by side
| SOTK (Sono-Tek Corporation) | VXX (iPath Series B S&P 500 VIX Short-Term Futures ETN) | |
|---|---|---|
| 1-year return | +50.1% | -49.7% |
| 5-year return | +46.2% | -95.6% |
| Volatility (ann.) | 33.8% | 60.9% |
| Beta vs S&P 500 | 0.46 | -3.31 |
| Max drawdown (3Y) | -46.5% | -83.3% |
| Market cap | $0.1B | – |
| P/E (trailing) | 38.7 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | SOTK | VXX |
|---|---|---|
| 2022 | -13.6% | -23.8% |
| 2023 | -15.7% | -72.5% |
| 2024 | -25.9% | -26.2% |
| 2025 | +3.0% | -42.2% |
| 2026 | +21.8% | -31.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SOTK and VXX good diversifiers for each other?
By historical standards, yes. A correlation of -0.22 means the two rarely move for the same reasons.
FAQ
What is the correlation between SOTK and VXX?
The SOTK/VXX correlation stands at -0.22 on a 3-year window (1 year: -0.10, 5 years: -0.18), computed from weekly returns as of 2026-08-27.
Is VXX a good diversifier for SOTK?
By historical standards, yes. A correlation of -0.22 means the two rarely move for the same reasons.
What does a correlation of -0.22 mean?
On the −1 to +1 scale, -0.22 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/sotk-vs-vxx.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/sotk-vs-vxx/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: SOTK correlations · VXX correlations
