Saudi Industrial Export Co MF2-GARCH Volatility Analysis
Volatility prediction for Sunday, October 25th, 2026
1 Day
47.86%
increased by 7.08%
1 Week
47.13%
increased by 6.35%
1 Month
45.87%
increased by 5.09%
Analysis last updated: Friday, October 23, 2026 at 08:33 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 14, 2005 to Oct 22, 2026Model Insight
Volatility shocks decay with a half-life of 12 trading days, meaning a shock loses half its impact after approximately 12 days.
σ
MF2-GARCH Model
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Shock decay: Shocks decay with a 12-day half-life
| Param | Value | t-stat |
|---|---|---|
| mwindow | 76 | |
| αARCH | 0.0713 | 2.89*** |
| βGARCH | 0.8557 | 19.62*** |
| γleverage | 0.0358 | 1.49 |
| λ₁tau intercept | 1.9394 | 0.55 |
| λ₂forecast adj. | 0.2927 | 0.60 |
| λ₃tau persistence | 0.4322 | 0.45 |
0.945
Persistence12d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 76 | |
α ARCH Response to squared shocks | 0.0713 | 2.89*** |
β GARCH Volatility persistence | 0.8557 | 19.62*** |
γ leverage Additional response to negative shocks | 0.0358 | 1.49 |
λ₁ tau intercept Baseline long-term coefficient | 1.9394 | 0.55 |
λ₂ forecast adj. Forecast performance sensitivity | 0.2927 | 0.60 |
λ₃ tau persistence Long-term factor persistence | 0.4322 | 0.45 |
Persistence:
0.945
Half-life:
12 days
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