STXS vs VXX: Correlation
Stereotaxis, Inc. (STXS) 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 -0.28.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are STXS and VXX?
Across a 3-year window, the weekly returns of STXS and VXX correlate at -0.28, negative, meaning they tend to move in opposite directions. Recent behaviour matches the longer record: -0.33 over 1 year against -0.28 over 3. Stretching to 5 years gives -0.31, with an annualized covariance of -869.0 %².
VXX is close to the least connected end of STXS's tracked universe, ranking #11 of 11. Twelve-month performance is nearly a tie, at -48.8% for STXS and -49.7% for VXX.
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.
STXS vs VXX: side by side
| STXS (Stereotaxis, Inc.) | VXX (iPath Series B S&P 500 VIX Short-Term Futures ETN) | |
|---|---|---|
| 1-year return | -48.8% | -49.7% |
| 5-year return | -76.8% | -95.6% |
| Volatility (ann.) | 51.7% | 60.9% |
| Beta vs S&P 500 | 1.07 | -3.31 |
| Max drawdown (3Y) | -64.7% | -83.3% |
| Market cap | $0.1B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | STXS | VXX |
|---|---|---|
| 2022 | -66.6% | -23.8% |
| 2023 | -15.5% | -72.5% |
| 2024 | +30.3% | -26.2% |
| 2025 | +0.9% | -42.2% |
| 2026 | -36.1% | -31.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are STXS and VXX good diversifiers for each other?
Yes. With a correlation of -0.28, STXS and VXX have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between STXS and VXX?
Using weekly returns as of 2026-08-27: -0.28 over 3 years, with -0.33 over the last year and -0.31 over 5 years.
Is VXX a good diversifier for STXS?
Yes. With a correlation of -0.28, STXS and VXX have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.28 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/stxs-vs-vxx.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/stxs-vs-vxx/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: STXS correlations · VXX correlations
