V-Lab
CBOE DJIA Volatility Index MF2-GARCH Volatility Analysis
Volatility prediction for Friday, July 24th, 2026
1 Day
142.16%
1 Week
143.90%
1 Month
146.90%
Analysis last updated: Friday, July 24, 2026 at 11:37 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Oct 6, 1997 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.
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 56 | |
α ARCH Response to squared shocks | 0.1906 | 29.51*** |
β GARCH Volatility persistence | 0.7764 | 75.85*** |
γ leverage Additional response to negative shocks | -0.1533 | -13.85*** |
λ₁ tau intercept Baseline long-term coefficient | 0.0257 | 1.47 |
λ₂ forecast adj. Forecast performance sensitivity | 0.0067 | 3.71*** |
λ₃ tau persistence Long-term factor persistence | 0.9930 | 539.96*** |
Persistence:
0.890
Half-life:
6 days
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