V-Lab
CBOE VIX Indicative Ask Index EGARCH Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
141.05%
increased by 17.53%
1 Week
135.62%
increased by 12.10%
1 Month
123.53%
increased by 0.01%
Analysis last updated: Friday, September 11, 2026 at 11:30 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Sep 18, 2009 to Sep 4, 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
EGARCH Model
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Inverse leverage: volatility responds almost entirely to positive returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.3114 | 0.90 |
| αARCH | 0.0523 | 1.86* |
| βGARCH | 0.9188 | 16.12*** |
| γleverage | 0.2574 | 8.32*** |
0.919
Persistence8d
Half-lifeσ
EGARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.3114 | 0.90 |
α ARCH Response to squared shocks | 0.0523 | 1.86* |
β GARCH Volatility persistence | 0.9188 | 16.12*** |
γ leverage Additional response to negative shocks | 0.2574 | 8.32*** |
Persistence:
0.919
Half-life:
8 days
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