Stock Exchange of Thailand SET Index MF2-GARCH Volatility Analysis
Volatility prediction for Wednesday, November 4th, 2026
1 Day
17.87%
increased by 0.25%
1 Week
17.42%
decreased by 0.20%
1 Month
16.90%
decreased by 0.72%
Analysis last updated: Thursday, November 5, 2026 at 12:55 AM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Oct 30, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 264% more than equivalent positive returns.
σ
MF2-GARCH Model
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Leverage: Negative returns increase volatility 264% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| mwindow | 21 | |
| αARCH | 0.0516 | 3.47*** |
| βGARCH | 0.7806 | 35.07*** |
| γleverage | 0.1363 | 4.36*** |
| λ₁tau intercept | 0.0030 | 2.57** |
| λ₂forecast adj. | 0.0225 | 3.22*** |
| λ₃tau persistence | 0.9762 | 133.10*** |
0.900
Persistence7d
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 | 0.0516 | 3.47*** |
β GARCH Volatility persistence | 0.7806 | 35.07*** |
γ leverage Additional response to negative shocks | 0.1363 | 4.36*** |
λ₁ tau intercept Baseline long-term coefficient | 0.0030 | 2.57** |
λ₂ forecast adj. Forecast performance sensitivity | 0.0225 | 3.22*** |
λ₃ tau persistence Long-term factor persistence | 0.9762 | 133.10*** |
Persistence:
0.900
Half-life:
7 days
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