V-Lab
Fujian Yanjing Huiquan Brewery Co Ltd GAS-GARCH Student T Volatility Analysis
Volatility prediction for Monday, July 27th, 2026
1 Day
36.63%
decreased by 2.73%
1 Week
36.98%
decreased by 2.38%
1 Month
38.16%
decreased by 1.20%
Analysis last updated: Saturday, July 25, 2026 at 10:19 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Feb 26, 2003 to Jul 24, 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 = 4.41 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 | 7.6390 | 5.10*** |
α ARCH Response to squared shocks | 0.0835 | 26.47*** |
β GARCH Volatility persistence | 0.9774 | 210.15*** |
ν DF Student-t tail thickness | 4.4078 | 8.74*** |
Persistence:
0.977
Half-life:
30 days
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