V-Lab
Gree Electric Appliances Inc of Zhuhai GAS-GARCH Student T Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
20.75%
1 Week
21.11%
1 Month
22.46%
Analysis last updated: Friday, September 11, 2026 at 06:25 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
With persistence 0.998, volatility shocks have a half-life of 371 trading days (~1.5 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. Returns follow a Student-t distribution with v = 4.30 degrees of freedom, capturing fatter tails than a normal distribution.
GAS-GARCH-T Model
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| Param | Value | t-stat |
|---|---|---|
| ωconst | 17.6285 | 2.03** |
| αARCH | 0.0615 | 20.81*** |
| βGARCH | 0.9981 | 1,170.14*** |
| νDF | 4.2996 | 11.17*** |
0.998
Persistence371d
Half-lifeGAS-GARCH-T Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 17.6285 | 2.03** |
α ARCH Response to squared shocks | 0.0615 | 20.81*** |
β GARCH Volatility persistence | 0.9981 | 1,170.14*** |
ν DF Student-t tail thickness | 4.2996 | 11.17*** |
Persistence:
0.998
Half-life:
371 days
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