V-Lab
S&P / ASX 200 Volatility Index MF2-GARCH Volatility Analysis
Volatility prediction for Friday, August 21st, 2026
1 Day
75.40%
decreased by 1.09%
1 Week
82.19%
increased by 5.70%
1 Month
90.73%
increased by 14.24%
Analysis last updated: Friday, August 21, 2026 at 08:17 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 2008 to Apr 4, 2025Model 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
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 101 | |
α ARCH Response to squared shocks | 0.1416 | 17.57*** |
β GARCH Volatility persistence | 0.6566 | 38.82*** |
γ leverage Additional response to negative shocks | 0.0163 | 0.91 |
λ₁ tau intercept Baseline long-term coefficient | 4.5968 | 0.60 |
λ₂ forecast adj. Forecast performance sensitivity | 0.0782 | 0.60 |
λ₃ tau persistence Long-term factor persistence | 0.8211 | 2.75*** |
Persistence:
0.806
Half-life:
3 days
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