V-Lab
Shanxi Xinghuacun Fen Wine Factory Co Ltd EGARCH Volatility Analysis
Volatility prediction for Tuesday, September 8th, 2026
1 Day
41.76%
decreased by 2.58%
1 Week
42.40%
decreased by 1.94%
1 Month
44.62%
increased by 0.28%
Analysis last updated: Tuesday, September 8, 2026 at 07:31 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 6, 1994 to Sep 4, 2026Model Insight
Volatility shocks decay with a half-life of 22 trading days, meaning a shock loses half its impact after approximately 22 days.
σ
EGARCH Model
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Shock decay: Shocks decay with a 22-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0760 | 6.31*** |
| αARCH | 0.2022 | 9.70*** |
| βGARCH | 0.9688 | 184.72*** |
| γleverage | 0.0031 | 0.18 |
0.969
Persistence22d
Half-lifeσ
EGARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0760 | 6.31*** |
α ARCH Response to squared shocks | 0.2022 | 9.70*** |
β GARCH Volatility persistence | 0.9688 | 184.72*** |
γ leverage Additional response to negative shocks | 0.0031 | 0.18 |
Persistence:
0.969
Half-life:
22 days
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