G-Devs SA MF2-GARCH Volatility Analysis
Volatility prediction for Monday, October 26th, 2026
1 Day
232.91%
increased by 79.94%
1 Week
216.84%
increased by 63.87%
1 Month
197.63%
increased by 44.66%
Analysis last updated: Sunday, October 25, 2026 at 07:53 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Nov 4, 2024 to Oct 23, 2026Boundary Parameters
Model 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 | 126 | |
| αARCH | 0.6261 | 7.24*** |
| βGARCH | 0.0000 | 0.00 |
| γleverage | 0.1493 | 0.79 |
| λ₁tau intercept | 9.0777 | 6.49*** |
| λ₂forecast adj. | 1.0000 | 6.34*** |
| λ₃tau persistence | 0.0000 | 0.00 |
0.701
Persistence2d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 126 | |
α ARCH Response to squared shocks | 0.6261 | 7.24*** |
β GARCH Volatility persistence | 0.0000 | 0.00 |
γ leverage Additional response to negative shocks | 0.1493 | 0.79 |
λ₁ tau intercept Baseline long-term coefficient | 9.0777 | 6.49*** |
λ₂ forecast adj. Forecast performance sensitivity | 1.0000 | 6.34*** |
λ₃ tau persistence Long-term factor persistence | 0.0000 | 0.00 |
Persistence:
0.701
Half-life:
2 days
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