Jiangyin Zhongnan Heavy Industries Co Ltd GAS-GARCH Student T Volatility Analysis
Volatility prediction for Tuesday, July 14th, 2026
1 Day
46.53%
increased by 5.75%
1 Week
46.71%
increased by 5.93%
1 Month
47.33%
increased by 6.55%
Analysis last updated: Tuesday, July 14, 2026 at 06:15 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jul 13, 2010 to Jul 10, 2026Model Insight
Volatility shocks decay with a half-life of 30 trading days, meaning a shock loses half its impact after approximately 30 days. Returns follow a Student-t distribution with v = 4.54 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 | 10.1228 | 4.52*** |
α ARCH Response to squared shocks | 0.1001 | 26.79*** |
β GARCH Volatility persistence | 0.9775 | 174.89*** |
ν DF Student-t tail thickness | 4.5399 | 8.80*** |
Persistence:
0.977
Half-life:
30 days
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