V-Lab
CBOE DJIA Volatility Index GJR-GARCH Volatility Analysis
Volatility prediction for Friday, August 21st, 2026
1 Day
90.37%
increased by 8.19%
1 Week
92.75%
increased by 10.57%
1 Month
99.23%
increased by 17.05%
Analysis last updated: Friday, August 21, 2026 at 11:34 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Oct 6, 1997 to Aug 14, 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 | 2.6490 | 17.91*** |
α ARCH Response to squared shocks | 0.1718 | 17.78*** |
β GARCH Volatility persistence | 0.8465 | 140.30*** |
γ leverage Additional response to negative shocks | -0.1436 | -10.00*** |
Persistence:
0.946
Half-life:
13 days
Other CBOE DJIA Volatility Index Analyses
Other GJR-GARCH Analyses on Volatility Indices