V-Lab
East Money Information Co Ltd GJR-GARCH Volatility Analysis
Volatility prediction for Tuesday, August 25th, 2026
1 Day
34.90%
decreased by 0.49%
1 Week
35.87%
increased by 0.48%
1 Month
38.94%
increased by 3.55%
Analysis last updated: Tuesday, August 25, 2026 at 06:23 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 19, 2010 to Aug 21, 2026Model Insight
Volatility shocks decay with a half-life of 24 trading days, meaning a shock loses half its impact after approximately 24 days.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.2769 | 11.99*** |
α ARCH Response to squared shocks | 0.0624 | 12.31*** |
β GARCH Volatility persistence | 0.9168 | 246.31*** |
γ leverage Additional response to negative shocks | -0.0148 | -1.75* |
Persistence:
0.972
Half-life:
24 days
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