V-Lab
CBOE VIX Indicative Ask Index GJR-GARCH Volatility Analysis
Volatility prediction for Friday, July 24th, 2026
1 Day
135.74%
increased by 21.34%
1 Week
132.34%
increased by 17.94%
1 Month
124.40%
increased by 10.00%
Analysis last updated: Friday, July 24, 2026 at 11:36 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Sep 18, 2009 to Jul 17, 2026Model Insight
This asset shows a rare inverse leverage effect: volatility responds almost entirely to positive returns, rising far more after gains than after losses. This is the reverse of the usual leverage effect, rare among risky assets.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 5.0000 | 15.90*** |
α ARCH Response to squared shocks | 0.2165 | 14.44*** |
β GARCH Volatility persistence | 0.7962 | 132.54*** |
γ leverage Additional response to negative shocks | -0.2165 | -14.84*** |
Persistence:
0.904
Half-life:
7 days
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