V-Lab
Gree Electric Appliances Inc of Zhuhai MF2-GARCH Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
22.85%
1 Week
23.11%
1 Month
23.93%
Analysis last updated: Friday, September 11, 2026 at 06:26 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Nov 18, 1996 to Sep 4, 2026Model Insight
This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 85% more than negative returns. Volatility rises more after gains than after losses, the reverse of the usual leverage effect and uncommon among risky assets.
MF2-GARCH Model
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| Param | Value | t-stat |
|---|---|---|
| mwindow | 126 | |
| αARCH | 0.0898 | 6.81*** |
| βGARCH | 0.8987 | 76.95*** |
| γleverage | -0.0414 | -2.24** |
| λ₁tau intercept | 0.0059 | 0.73 |
| λ₂forecast adj. | 0.0073 | 1.40 |
| λ₃tau persistence | 0.9914 | 164.85*** |
0.968
Persistence21d
Half-lifeMF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 126 | |
α ARCH Response to squared shocks | 0.0898 | 6.81*** |
β GARCH Volatility persistence | 0.8987 | 76.95*** |
γ leverage Additional response to negative shocks | -0.0414 | -2.24** |
λ₁ tau intercept Baseline long-term coefficient | 0.0059 | 0.73 |
λ₂ forecast adj. Forecast performance sensitivity | 0.0073 | 1.40 |
λ₃ tau persistence Long-term factor persistence | 0.9914 | 164.85*** |
Persistence:
0.968
Half-life:
21 days
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