S&P/ASX 200 MF2-GARCH Volatility Analysis
Volatility prediction for Thursday, October 22nd, 2026
1 Day
10.14%
decreased by 0.33%
1 Week
10.36%
decreased by 0.11%
1 Month
11.05%
increased by 0.58%
Analysis last updated: Thursday, October 22, 2026 at 02:02 AM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
May 29, 1992 to Oct 16, 2026Model Insight
This asset exhibits a strong leverage effect: volatility responds almost entirely to negative shocks. The ARCH response to positive shocks is negligible.
σ
MF2-GARCH Model
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Leverage: volatility responds almost entirely to negative shocks
| Param | Value | t-stat |
|---|---|---|
| mwindow | 76 | |
| αARCH | 0.0000 | 0.00 |
| βGARCH | 0.8588 | 70.27*** |
| γleverage | 0.1569 | 10.92*** |
| λ₁tau intercept | 0.0090 | 1.67* |
| λ₂forecast adj. | 0.0692 | 2.03** |
| λ₃tau persistence | 0.9188 | 22.91*** |
0.937
Persistence11d
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 | 0.0000 | 0.00 |
β GARCH Volatility persistence | 0.8588 | 70.27*** |
γ leverage Additional response to negative shocks | 0.1569 | 10.92*** |
λ₁ tau intercept Baseline long-term coefficient | 0.0090 | 1.67* |
λ₂ forecast adj. Forecast performance sensitivity | 0.0692 | 2.03** |
λ₃ tau persistence Long-term factor persistence | 0.9188 | 22.91*** |
Persistence:
0.937
Half-life:
11 days
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