GERN vs VXZ: Correlation
How closely do Geron Corporation (GERN) and iPath Series B S&P 500 VIX Mid-Term Futures ETN (VXZ) 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 GERN and VXZ?
On 3 years of weekly data the GERN/VXZ correlation comes out at -0.24, negative, meaning they tend to move in opposite directions. The past 12 months show a weaker link (-0.38) than the 3-year average (-0.24). The 5-year figure is -0.25, and annualized covariance runs at -397.4 %².
Out of 11 assets tracked against GERN, VXZ lands near the bottom at #10. The last year tells two different stories: GERN led by 24.6 percentage points, +8.5% for GERN against -16.1% for VXZ. Note the risk asymmetry: GERN runs 2.5 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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 VXZ: side by side
| GERN (Geron Corporation) | VXZ (iPath Series B S&P 500 VIX Mid-Term Futures ETN) | |
|---|---|---|
| 1-year return | +8.5% | -16.1% |
| 5-year return | +6.2% | -53.1% |
| Volatility (ann.) | 64.0% | 25.6% |
| Beta vs S&P 500 | 1.34 | -1.31 |
| Max drawdown (3Y) | -79.0% | -36.4% |
| Market cap | $1.0B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | – |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | GERN | VXZ |
|---|---|---|
| 2022 | +98.4% | +0.5% |
| 2023 | -12.8% | -44.0% |
| 2024 | +67.8% | -12.7% |
| 2025 | -62.7% | +5.7% |
| 2026 | +15.9% | -10.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are GERN and VXZ good diversifiers for each other?
Yes: at -0.24, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between GERN and VXZ?
The GERN/VXZ correlation stands at -0.24 on a 3-year window (1 year: -0.38, 5 years: -0.25), computed from weekly returns as of 2026-08-27.
Is VXZ a good diversifier for GERN?
Yes: at -0.24, the two have gone their own ways historically, which is what genuine diversification looks like.
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/gern-vs-vxz.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/gern-vs-vxz/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: GERN correlations · VXZ correlations
