V-Lab
Shanghai Stock Exchange Composite Index MF2-GARCH Volatility Analysis
Volatility prediction for Friday, September 4th, 2026
1 Day
15.49%
decreased by 0.67%
1 Week
16.52%
increased by 0.36%
1 Month
18.55%
increased by 2.39%
Analysis last updated: Thursday, September 3, 2026 at 08:27 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1991 to Aug 28, 2026Model Insight
This asset exhibits a notable leverage effect: negative returns increase next-day volatility 58% more than equivalent positive returns.
σ
MF2-GARCH Model
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Leverage: Negative returns increase volatility 58% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| mwindow | 61 | |
| αARCH | 0.1064 | 4.77*** |
| βGARCH | 0.7644 | 36.54*** |
| γleverage | 0.0623 | 2.07** |
| λ₁tau intercept | 0.0209 | 1.83* |
| λ₂forecast adj. | 0.0750 | 3.71*** |
| λ₃tau persistence | 0.9191 | 41.09*** |
0.902
Persistence7d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 61 | |
α ARCH Response to squared shocks | 0.1064 | 4.77*** |
β GARCH Volatility persistence | 0.7644 | 36.54*** |
γ leverage Additional response to negative shocks | 0.0623 | 2.07** |
λ₁ tau intercept Baseline long-term coefficient | 0.0209 | 1.83* |
λ₂ forecast adj. Forecast performance sensitivity | 0.0750 | 3.71*** |
λ₃ tau persistence Long-term factor persistence | 0.9191 | 41.09*** |
Persistence:
0.902
Half-life:
7 days
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