V-Lab
Estun Automation Co Ltd GJR-GARCH Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
55.64%
decreased by 0.25%
1 Week
70.92%
increased by 15.03%
1 Month
99.88%
increased by 43.99%
Analysis last updated: Friday, September 11, 2026 at 07:16 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 9, 2026 to Sep 4, 2026Model Insight
Volatility shocks decay with a half-life of 9 trading days, meaning a shock loses half its impact after approximately 9 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 9-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 5.0000 | 1.82* |
| αARCH | 0.6811 | 1.41 |
| βGARCH | 0.5878 | 5.89*** |
| γleverage | -0.6811 | -1.34 |
0.928
Persistence9d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 5.0000 | 1.82* |
α ARCH Response to squared shocks | 0.6811 | 1.41 |
β GARCH Volatility persistence | 0.5878 | 5.89*** |
γ leverage Additional response to negative shocks | -0.6811 | -1.34 |
Persistence:
0.928
Half-life:
9 days
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