V-Lab
Shanghai Stock Exchange Composite Index MF2-GARCH Volatility Analysis
Volatility prediction for Monday, September 28th, 2026
1 Day
15.96%
increased by 1.61%
1 Week
16.43%
increased by 2.08%
1 Month
17.45%
increased by 3.10%
Analysis last updated: Thursday, September 24, 2026 at 08:04 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1991 to Sep 24, 2026Model Insight
This asset exhibits a notable leverage effect: negative returns increase next-day volatility 59% more than equivalent positive returns.
σ
MF2-GARCH Model
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Leverage: Negative returns increase volatility 59% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| mwindow | 61 | |
| αARCH | 0.1063 | 4.78*** |
| βGARCH | 0.7658 | 36.78*** |
| γleverage | 0.0622 | 2.08** |
| λ₁tau intercept | 0.0201 | 1.81* |
| λ₂forecast adj. | 0.0727 | 3.68*** |
| λ₃tau persistence | 0.9216 | 42.20*** |
0.903
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 | 0.1063 | 4.78*** |
β GARCH Volatility persistence | 0.7658 | 36.78*** |
γ leverage Additional response to negative shocks | 0.0622 | 2.08** |
λ₁ tau intercept Baseline long-term coefficient | 0.0201 | 1.81* |
λ₂ forecast adj. Forecast performance sensitivity | 0.0727 | 3.68*** |
λ₃ tau persistence Long-term factor persistence | 0.9216 | 42.20*** |
Persistence:
0.903
Half-life:
7 days
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