V-Lab
Hongxing Coldchain Hunan Co Ltd GAS-GARCH Student T Volatility Analysis
Volatility prediction for Tuesday, September 8th, 2026
1 Day
65.18%
increased by 25.58%
1 Week
67.78%
increased by 28.18%
1 Month
73.78%
increased by 34.18%
Analysis last updated: Tuesday, September 8, 2026 at 08:15 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 13, 2026 to Sep 4, 2026Model Insight
Volatility shocks decay with a half-life of 8 trading days, meaning a shock loses half its impact after approximately 8 days. Returns follow a Student-t distribution with v = 4.81 degrees of freedom, capturing fatter tails than a normal distribution.
𝑓
GAS-GARCH-T Model
Tap to view equation
Shock decay: Shocks decay with a 8-day half-lifev = 4.81 · fat tails
| Param | Value | t-stat |
|---|---|---|
| ωconst | 26.2691 | 0.72 |
| αARCH | 0.4241 | 2.88*** |
| βGARCH | 0.9211 | 8.52*** |
| νDF | 4.8066 | 1.34 |
0.921
Persistence8d
Half-life𝑓
GAS-GARCH-T Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 26.2691 | 0.72 |
α ARCH Response to squared shocks | 0.4241 | 2.88*** |
β GARCH Volatility persistence | 0.9211 | 8.52*** |
ν DF Student-t tail thickness | 4.8066 | 1.34 |
Persistence:
0.921
Half-life:
8 days
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