V-Lab
Yunnan Chihong Zinc & Germanium Co Ltd GJR-GARCH Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
40.01%
decreased by 0.92%
1 Week
40.34%
decreased by 0.59%
1 Month
41.51%
increased by 0.58%
Analysis last updated: Friday, September 11, 2026 at 06:15 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Apr 20, 2004 to Sep 4, 2026Model Insight
Volatility shocks decay with a half-life of 55 trading days, meaning a shock loses half its impact after approximately 55 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 55-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.1315 | 3.23*** |
| αARCH | 0.1013 | 4.63*** |
| βGARCH | 0.9075 | 85.59*** |
| γleverage | -0.0423 | -1.40 |
0.988
Persistence55d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.1315 | 3.23*** |
α ARCH Response to squared shocks | 0.1013 | 4.63*** |
β GARCH Volatility persistence | 0.9075 | 85.59*** |
γ leverage Additional response to negative shocks | -0.0423 | -1.40 |
Persistence:
0.988
Half-life:
55 days
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