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Gree Electric Appliances Inc of Zhuhai GAS-GARCH Student T Volatility Analysis

Volatility prediction for Friday, September 11th, 2026

1 Day

20.75%

decreased by 0.92%

1 Week

21.11%

decreased by 0.56%

1 Month

22.46%

increased by 0.79%

Analysis last updated: Friday, September 11, 2026 at 06:25 PM UTC

Date Range:

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to

6M ·

1Y ·

2Y ·

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10Y ·

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graph of Gree Electric Appliances Inc of Zhuhai GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Nov 18, 1996 to Sep 4, 2026

Model 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.

𝑓

GAS-GARCH-T Model

Tap to view equation

High persistence: persistence 0.998, shock half-life ~371 daysv = 4.30 · fat tails
ParamValuet-stat
ωconst17.6285
2.03**
αARCH0.0615
20.81***
βGARCH0.9981
1,170.14***
νDF4.2996
11.17***

0.998

Persistence

371d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-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