V-Lab
Dow Jones Composite Average GJR-GARCH Volatility Analysis
Volatility prediction for Monday, July 27th, 2026
1 Day
10.62%
decreased by 0.31%
1 Week
10.91%
decreased by 0.02%
1 Month
11.84%
increased by 0.91%
Analysis last updated: Saturday, July 25, 2026 at 12:04 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 1, 1990 to Jul 24, 2026Model Insight
This asset exhibits a strong leverage effect: volatility responds almost entirely to negative shocks. The ARCH response to positive shocks is negligible.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0229 | 21.00*** |
α ARCH Response to squared shocks | 0.0119 | 5.92*** |
β GARCH Volatility persistence | 0.8955 | 444.88*** |
γ leverage Additional response to negative shocks | 0.1387 | 25.67*** |
Persistence:
0.977
Half-life:
30 days
Other GJR-GARCH Analyses on Equity Indices