GERN vs VXX: Correlation
How closely do Geron Corporation (GERN) 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 -0.31, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are GERN and VXX?
Across a 3-year window, the weekly returns of GERN and VXX correlate at -0.31, negative, meaning they tend to move in opposite directions. The relationship has been stable: the 1-year correlation (-0.37) sits close to the 3-year figure. Stretching to 5 years gives -0.28, with an annualized covariance of -1189.7 %².
Among the 11 assets we track against GERN, VXX sits near the bottom by co-movement, at rank #11. Correlation aside, the last 12 months split them widely, with GERN ahead by 58.2 points (+8.5% 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.
GERN vs VXX: side by side
| GERN (Geron Corporation) | VXX (iPath Series B S&P 500 VIX Short-Term Futures ETN) | |
|---|---|---|
| 1-year return | +8.5% | -49.7% |
| 5-year return | +6.2% | -95.6% |
| Volatility (ann.) | 64.0% | 60.9% |
| Beta vs S&P 500 | 1.34 | -3.31 |
| Max drawdown (3Y) | -79.0% | -83.3% |
| Market cap | $1.0B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | GERN | VXX |
|---|---|---|
| 2022 | +98.4% | -23.8% |
| 2023 | -12.8% | -72.5% |
| 2024 | +67.8% | -26.2% |
| 2025 | -62.7% | -42.2% |
| 2026 | +15.9% | -31.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are GERN and VXX good diversifiers for each other?
Yes: at -0.31, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between GERN and VXX?
Using weekly returns as of 2026-08-27: -0.31 over 3 years, with -0.37 over the last year and -0.28 over 5 years.
Is VXX a good diversifier for GERN?
Yes: at -0.31, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.31 mean?
A reading of -0.31 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/gern-vs-vxx.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/gern-vs-vxx/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: GERN correlations · VXX correlations
