V-Lab
CBOE Skew Index MF2-GARCH Volatility Analysis
Volatility prediction for Friday, August 21st, 2026
1 Day
36.42%
1 Week
42.16%
1 Month
47.67%
Analysis last updated: Friday, August 21, 2026 at 11:31 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Aug 14, 2026Model Insight
This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 88% more than negative returns. Volatility rises more after gains than after losses, the reverse of the usual leverage effect and uncommon among risky assets.
MF2-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 21 | |
α ARCH Response to squared shocks | 0.3385 | 38.73*** |
β GARCH Volatility persistence | 0.4733 | 43.05*** |
γ leverage Additional response to negative shocks | -0.1583 | -13.72*** |
λ₁ tau intercept Baseline long-term coefficient | 0.0161 | 3.37*** |
λ₂ forecast adj. Forecast performance sensitivity | 0.0305 | 7.07*** |
λ₃ tau persistence Long-term factor persistence | 0.9672 | 204.96*** |
Persistence:
0.733
Half-life:
2 days
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