V-Lab
Varopakorn Co EGARCH Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
64.86%
increased by 0.84%
1 Week
68.43%
increased by 4.41%
1 Month
78.35%
increased by 14.33%
Analysis last updated: Friday, September 11, 2026 at 09:29 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jul 17, 1992 to Sep 4, 2026Model Insight
Volatility shocks decay with a half-life of 9 trading days, meaning a shock loses half its impact after approximately 9 days.
σ
EGARCH Model
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Shock decay: Shocks decay with a 9-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.2761 | 4.55*** |
| αARCH | 0.2441 | 6.78*** |
| βGARCH | 0.9220 | 46.21*** |
| γleverage | 0.0318 | 0.88 |
0.922
Persistence9d
Half-lifeσ
EGARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.2761 | 4.55*** |
α ARCH Response to squared shocks | 0.2441 | 6.78*** |
β GARCH Volatility persistence | 0.9220 | 46.21*** |
γ leverage Additional response to negative shocks | 0.0318 | 0.88 |
Persistence:
0.922
Half-life:
9 days
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