V-Lab
Jiangsu Ankura Intelligent Power Co Ltd GJR-GARCH Volatility Analysis
Volatility prediction for Monday, September 21st, 2026
1 Day
41.48%
increased by 1.57%
1 Week
42.76%
increased by 2.85%
1 Month
45.65%
increased by 5.74%
Analysis last updated: Saturday, September 19, 2026 at 07:48 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Feb 28, 2017 to Sep 18, 2026Model Insight
Volatility shocks decay with a half-life of 8 trading days, meaning a shock loses half its impact after approximately 8 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 8-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.8153 | 2.88*** |
| αARCH | 0.1020 | 2.09** |
| βGARCH | 0.8323 | 22.10*** |
| γleverage | -0.0392 | -0.50 |
0.915
Persistence8d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.8153 | 2.88*** |
α ARCH Response to squared shocks | 0.1020 | 2.09** |
β GARCH Volatility persistence | 0.8323 | 22.10*** |
γ leverage Additional response to negative shocks | -0.0392 | -0.50 |
Persistence:
0.915
Half-life:
8 days
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