V-Lab
Shanghai Shenzhen CSI 300 Index MF2-GARCH Volatility Analysis
Volatility prediction for Friday, September 4th, 2026
1 Day
18.26%
decreased by 1.03%
1 Week
18.44%
decreased by 0.85%
1 Month
19.11%
decreased by 0.18%
Analysis last updated: Friday, September 4, 2026 at 11:28 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Apr 8, 2005 to Aug 28, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 181% more than equivalent positive returns.
σ
MF2-GARCH Model
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Leverage: Negative returns increase volatility 181% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| mwindow | 26 | |
| αARCH | 0.0435 | 1.73* |
| βGARCH | 0.6826 | 11.21*** |
| γleverage | 0.0787 | 2.38** |
| λ₁tau intercept | 0.0667 | 2.29** |
| λ₂forecast adj. | 0.2292 | 3.14*** |
| λ₃tau persistence | 0.7491 | 9.36*** |
0.766
Persistence3d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 26 | |
α ARCH Response to squared shocks | 0.0435 | 1.73* |
β GARCH Volatility persistence | 0.6826 | 11.21*** |
γ leverage Additional response to negative shocks | 0.0787 | 2.38** |
λ₁ tau intercept Baseline long-term coefficient | 0.0667 | 2.29** |
λ₂ forecast adj. Forecast performance sensitivity | 0.2292 | 3.14*** |
λ₃ tau persistence Long-term factor persistence | 0.7491 | 9.36*** |
Persistence:
0.766
Half-life:
3 days
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