V-Lab
Varopakorn Co MF2-GARCH Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
61.92%
increased by 1.58%
1 Week
69.01%
increased by 8.67%
1 Month
68.39%
increased by 8.05%
Analysis last updated: Friday, September 11, 2026 at 09:30 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 2 trading days, meaning a shock loses half its impact after approximately 2 days.
σ
MF2-GARCH Model
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Shock decay: Shocks decay with a 2-day half-life
| Param | Value | t-stat |
|---|---|---|
| mwindow | 21 | |
| αARCH | 0.2157 | 4.12*** |
| βGARCH | 0.4781 | 8.01*** |
| γleverage | -0.0663 | -1.19 |
| λ₁tau intercept | 3.6528 | 1.22 |
| λ₂forecast adj. | 0.3169 | 1.24 |
| λ₃tau persistence | 0.4886 | 1.18 |
0.661
Persistence2d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 21 | |
α ARCH Response to squared shocks | 0.2157 | 4.12*** |
β GARCH Volatility persistence | 0.4781 | 8.01*** |
γ leverage Additional response to negative shocks | -0.0663 | -1.19 |
λ₁ tau intercept Baseline long-term coefficient | 3.6528 | 1.22 |
λ₂ forecast adj. Forecast performance sensitivity | 0.3169 | 1.24 |
λ₃ tau persistence Long-term factor persistence | 0.4886 | 1.18 |
Persistence:
0.661
Half-life:
2 days
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