V-Lab
-1x Short VIX Futures ETF GJR-GARCH Volatility Analysis
Volatility prediction for Monday, September 14th, 2026
1 Day
49.34%
decreased by 3.04%
1 Week
51.43%
decreased by 0.95%
1 Month
55.88%
increased by 3.50%
Analysis last updated: Friday, September 11, 2026 at 10:20 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 29, 2022 to Sep 11, 2026Model Insight
Volatility shocks decay with a half-life of 7 trading days, meaning a shock loses half its impact after approximately 7 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 7-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.3627 | 3.10*** |
| αARCH | 0.0000 | 0.00 |
| βGARCH | 0.7622 | 15.79*** |
| γleverage | 0.2887 | 2.28** |
0.907
Persistence7d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.3627 | 3.10*** |
α ARCH Response to squared shocks | 0.0000 | 0.00 |
β GARCH Volatility persistence | 0.7622 | 15.79*** |
γ leverage Additional response to negative shocks | 0.2887 | 2.28** |
Persistence:
0.907
Half-life:
7 days
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