V-Lab
Anhui Tatfook Technology Co Ltd GJR-GARCH Volatility Analysis
Volatility prediction for Monday, September 21st, 2026
1 Day
39.39%
decreased by 0.71%
1 Week
40.99%
increased by 0.89%
1 Month
45.62%
increased by 5.52%
Analysis last updated: Saturday, September 19, 2026 at 07:55 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Oct 26, 2010 to Sep 18, 2026Model Insight
Volatility shocks decay with a half-life of 17 trading days, meaning a shock loses half its impact after approximately 17 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 17-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.5099 | 3.06*** |
| αARCH | 0.0891 | 3.12*** |
| βGARCH | 0.8816 | 33.93*** |
| γleverage | -0.0205 | -0.42 |
0.960
Persistence17d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.5099 | 3.06*** |
α ARCH Response to squared shocks | 0.0891 | 3.12*** |
β GARCH Volatility persistence | 0.8816 | 33.93*** |
γ leverage Additional response to negative shocks | -0.0205 | -0.42 |
Persistence:
0.960
Half-life:
17 days
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