V-Lab
Zensho Holdings Co Ltd GAS-GARCH Student T Volatility Analysis
Volatility prediction for Tuesday, August 25th, 2026
1 Day
41.44%
decreased by 0.99%
1 Week
40.79%
decreased by 1.64%
1 Month
38.83%
decreased by 3.60%
Analysis last updated: Tuesday, August 25, 2026 at 06:33 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jul 21, 2020 to Aug 21, 2026Model Insight
Volatility shocks decay with a half-life of 14 trading days, meaning a shock loses half its impact after approximately 14 days. Returns follow a Student-t distribution with v = 3.74 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 | 4.5557 | 4.11*** |
α ARCH Response to squared shocks | 0.0914 | 12.76*** |
β GARCH Volatility persistence | 0.9505 | 71.65*** |
ν DF Student-t tail thickness | 3.7434 | 5.59*** |
Persistence:
0.951
Half-life:
14 days
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