V-Lab
Hongxing Coldchain Hunan Co Ltd GAS-GARCH Student T Volatility Analysis
Volatility prediction for Monday, August 24th, 2026
1 Day
25.75%
decreased by 3.64%
1 Week
36.94%
increased by 7.55%
1 Month
57.94%
increased by 28.55%
Analysis last updated: Saturday, August 22, 2026 at 08:55 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 13, 2026 to Aug 21, 2026Model Insight
Volatility shocks decay with a half-life of 12 trading days, meaning a shock loses half its impact after approximately 12 days. Returns follow a Student-t distribution with v = 7.53 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 | 29.7600 | 3.90*** |
α ARCH Response to squared shocks | 0.4671 | 11.51*** |
β GARCH Volatility persistence | 0.9458 | 72.22*** |
ν DF Student-t tail thickness | 7.5341 | 3.21*** |
Persistence:
0.946
Half-life:
12 days
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