V-Lab
S&P / ASX 200 Volatility Index MF2-GARCH Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
113.25%
increased by 16.21%
1 Week
107.57%
increased by 10.53%
1 Month
100.49%
increased by 3.45%
Analysis last updated: Saturday, September 12, 2026 at 12:50 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 2008 to Sep 10, 2026Boundary Parameters
Model Insight
Volatility shocks decay with a half-life of 3 trading days, meaning a shock loses half its impact after approximately 3 days.
σ
MF2-GARCH Model
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Shock decay: Shocks decay with a 3-day half-life
| Param | Value | t-stat |
|---|---|---|
| mwindow | 51 | |
| αARCH | 0.1551 | 5.34*** |
| βGARCH | 0.6176 | 11.19*** |
| γleverage | 0.0014 | 0.02 |
| λ₁tau intercept | 10.0000 | 0.73 |
| λ₂forecast adj. | 0.1897 | 0.72 |
| λ₃tau persistence | 0.5826 | 1.02 |
0.773
Persistence3d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 51 | |
α ARCH Response to squared shocks | 0.1551 | 5.34*** |
β GARCH Volatility persistence | 0.6176 | 11.19*** |
γ leverage Additional response to negative shocks | 0.0014 | 0.02 |
λ₁ tau intercept Baseline long-term coefficient | 10.0000 | 0.73 |
λ₂ forecast adj. Forecast performance sensitivity | 0.1897 | 0.72 |
λ₃ tau persistence Long-term factor persistence | 0.5826 | 1.02 |
Persistence:
0.773
Half-life:
3 days
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