V-Lab
CBOE Volatility Index MF2-GARCH Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
115.21%
1 Week
114.58%
1 Month
113.33%
Analysis last updated: Friday, September 11, 2026 at 11:35 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 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.
MF2-GARCH Model
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| Param | Value | t-stat |
|---|---|---|
| mwindow | 31 | |
| αARCH | 0.2057 | 9.01*** |
| βGARCH | 0.7524 | 33.37*** |
| γleverage | -0.2057 | -7.46*** |
| λ₁tau intercept | 0.0466 | 1.14 |
| λ₂forecast adj. | 0.0045 | 2.97*** |
| λ₃tau persistence | 0.9944 | 459.72*** |
0.855
Persistence4d
Half-lifeMF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 31 | |
α ARCH Response to squared shocks | 0.2057 | 9.01*** |
β GARCH Volatility persistence | 0.7524 | 33.37*** |
γ leverage Additional response to negative shocks | -0.2057 | -7.46*** |
λ₁ tau intercept Baseline long-term coefficient | 0.0466 | 1.14 |
λ₂ forecast adj. Forecast performance sensitivity | 0.0045 | 2.97*** |
λ₃ tau persistence Long-term factor persistence | 0.9944 | 459.72*** |
Persistence:
0.855
Half-life:
4 days
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