Jiawei Renewable Energy Co Ltd GAS-GARCH Student T Volatility Analysis
Volatility prediction for Tuesday, July 14th, 2026
1 Day
64.99%
increased by 6.41%
1 Week
64.70%
increased by 6.12%
1 Month
63.73%
increased by 5.15%
Analysis last updated: Tuesday, July 14, 2026 at 06:22 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
May 11, 2012 to Jul 10, 2026Model Insight
Volatility shocks decay with a half-life of 22 trading days, meaning a shock loses half its impact after approximately 22 days. Returns follow a Student-t distribution with v = 4.73 degrees of freedom, capturing fatter tails than a normal distribution.
𝑓
GAS-GARCH-T Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 14.2330 | 5.41*** |
α ARCH Response to squared shocks | 0.0808 | 20.03*** |
β GARCH Volatility persistence | 0.9694 | 159.32*** |
ν DF Student-t tail thickness | 4.7252 | 5.34*** |
Persistence:
0.969
Half-life:
22 days
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