BMRA vs VXX: Correlation
How closely do Biomerica, Inc. (BMRA) 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 -0.24, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BMRA and VXX?
Across a 3-year window, the weekly returns of BMRA and VXX correlate at -0.24, negative, meaning they tend to move in opposite directions. The relationship has been stable: the 1-year correlation (-0.29) sits close to the 3-year figure. Stretching to 5 years gives -0.16, with an annualized covariance of -1437.6 %².
Among the 10 assets we track against BMRA, VXX sits near the bottom by co-movement, at rank #10. The last year tells two different stories: BMRA led by 16.4 percentage points, -33.3% for BMRA against -49.7% for VXX. One caveat on sizing: BMRA is 1.6 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
BMRA vs VXX: side by side
| BMRA (Biomerica, Inc.) | VXX (iPath Series B S&P 500 VIX Short-Term Futures ETN) | |
|---|---|---|
| 1-year return | -33.3% | -49.7% |
| 5-year return | -94.0% | -95.6% |
| Volatility (ann.) | 97.9% | 60.9% |
| Beta vs S&P 500 | 1.49 | -3.31 |
| Max drawdown (3Y) | -88.7% | -83.3% |
| Market cap | – | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BMRA | VXX |
|---|---|---|
| 2022 | -13.9% | -23.8% |
| 2023 | -62.7% | -72.5% |
| 2024 | -76.0% | -26.2% |
| 2025 | +5.0% | -42.2% |
| 2026 | -16.7% | -31.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BMRA and VXX good diversifiers for each other?
By historical standards, yes. A correlation of -0.24 means the two rarely move for the same reasons.
FAQ
What is the correlation between BMRA and VXX?
The BMRA/VXX correlation stands at -0.24 on a 3-year window (1 year: -0.29, 5 years: -0.16), computed from weekly returns as of 2026-08-27.
Is VXX a good diversifier for BMRA?
By historical standards, yes. A correlation of -0.24 means the two rarely move for the same reasons.
What does a correlation of -0.24 mean?
A reading of -0.24 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/bmra-vs-vxx.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/bmra-vs-vxx/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: BMRA correlations · VXX correlations
