V-Lab
CBOE DJIA Volatility Index GJR-GARCH Volatility Analysis
Volatility prediction for Friday, July 24th, 2026
1 Day
116.27%
increased by 21.97%
1 Week
115.81%
increased by 21.51%
1 Month
114.51%
increased by 20.21%
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
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.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 2.6488 | 17.92*** |
α ARCH Response to squared shocks | 0.1715 | 17.72*** |
β GARCH Volatility persistence | 0.8464 | 140.23*** |
γ leverage Additional response to negative shocks | -0.1428 | -9.91*** |
Persistence:
0.947
Half-life:
13 days
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