V-Lab
Wolong New Energy Group Co Ltd EGARCH Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
29.83%
increased by 0.14%
1 Week
31.38%
increased by 1.69%
1 Month
36.50%
increased by 6.81%
Analysis last updated: Friday, September 11, 2026 at 06:14 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Apr 15, 1999 to Sep 4, 2026Model Insight
Volatility shocks decay with a half-life of 13 trading days, meaning a shock loses half its impact after approximately 13 days.
σ
EGARCH Model
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Shock decay: Shocks decay with a 13-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.1174 | 6.11*** |
| αARCH | 0.2471 | 9.98*** |
| βGARCH | 0.9483 | 111.96*** |
| γleverage | 0.0247 | 1.33 |
0.948
Persistence13d
Half-lifeσ
EGARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.1174 | 6.11*** |
α ARCH Response to squared shocks | 0.2471 | 9.98*** |
β GARCH Volatility persistence | 0.9483 | 111.96*** |
γ leverage Additional response to negative shocks | 0.0247 | 1.33 |
Persistence:
0.948
Half-life:
13 days
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