V-Lab
Spenda Ltd MF2-GARCH Volatility Analysis
Volatility prediction for Friday, September 4th, 2026
1 Day
343.88%
increased by 2.19%
1 Week
342.17%
increased by 0.48%
1 Month
337.87%
decreased by 3.82%
Analysis last updated: Friday, September 4, 2026 at 05:54 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
May 29, 2002 to Aug 28, 2026Model Insight
Volatility shocks decay with a half-life of 22 trading days, meaning a shock loses half its impact after approximately 22 days.
σ
MF2-GARCH Model
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Shock decay: Shocks decay with a 22-day half-life
| Param | Value | t-stat |
|---|---|---|
| mwindow | 126 | |
| αARCH | 0.0462 | 3.23*** |
| βGARCH | 0.9062 | 45.44*** |
| γleverage | 0.0321 | 1.34 |
| λ₁tau intercept | 3.9232 | 1.63 |
| λ₂forecast adj. | 1.0000 | 13.76*** |
| λ₃tau persistence | 0.0000 | 0.00 |
0.968
Persistence22d
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 | 0.0462 | 3.23*** |
β GARCH Volatility persistence | 0.9062 | 45.44*** |
γ leverage Additional response to negative shocks | 0.0321 | 1.34 |
λ₁ tau intercept Baseline long-term coefficient | 3.9232 | 1.63 |
λ₂ forecast adj. Forecast performance sensitivity | 1.0000 | 13.76*** |
λ₃ tau persistence Long-term factor persistence | 0.0000 | 0.00 |
Persistence:
0.968
Half-life:
22 days
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