V-Lab
Wolong New Energy Group Co Ltd GAS-GARCH Student T Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
28.46%
increased by 0.66%
1 Week
30.09%
increased by 2.29%
1 Month
35.00%
increased by 7.20%
Analysis last updated: Friday, September 11, 2026 at 06:14 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Apr 15, 1999 to Sep 4, 2026Model Insight
Volatility shocks decay with a half-life of 25 trading days, meaning a shock loses half its impact after approximately 25 days. Returns follow a Student-t distribution with v = 5.14 degrees of freedom, capturing fatter tails than a normal distribution.
𝑓
GAS-GARCH-T Model
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Shock decay: Shocks decay with a 25-day half-lifev = 5.14 · fat tails
| Param | Value | t-stat |
|---|---|---|
| ωconst | 10.2485 | 1.84* |
| αARCH | 0.1162 | 7.70*** |
| βGARCH | 0.9723 | 60.72*** |
| νDF | 5.1364 | 2.65*** |
0.972
Persistence25d
Half-life𝑓
GAS-GARCH-T Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 10.2485 | 1.84* |
α ARCH Response to squared shocks | 0.1162 | 7.70*** |
β GARCH Volatility persistence | 0.9723 | 60.72*** |
ν DF Student-t tail thickness | 5.1364 | 2.65*** |
Persistence:
0.972
Half-life:
25 days
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