V-Lab
Anhui Tatfook Technology Co Ltd EGARCH Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
40.15%
decreased by 1.01%
1 Week
41.60%
increased by 0.44%
1 Month
46.56%
increased by 5.40%
Analysis last updated: Friday, September 11, 2026 at 06:31 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Oct 26, 2010 to Sep 4, 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
EGARCH Model
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Shock decay: Shocks decay with a 17-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.1125 | 2.88*** |
| αARCH | 0.1798 | 5.44*** |
| βGARCH | 0.9590 | 62.07*** |
| γleverage | 0.0163 | 0.70 |
0.959
Persistence17d
Half-lifeσ
EGARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.1125 | 2.88*** |
α ARCH Response to squared shocks | 0.1798 | 5.44*** |
β GARCH Volatility persistence | 0.9590 | 62.07*** |
γ leverage Additional response to negative shocks | 0.0163 | 0.70 |
Persistence:
0.959
Half-life:
17 days
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