V-Lab
ZIP Co Ltd GAS-GARCH Student T Volatility Analysis
Volatility prediction for Monday, August 24th, 2026
1 Day
113.46%
increased by 19.93%
1 Week
112.23%
increased by 18.70%
1 Month
108.00%
increased by 14.47%
Analysis last updated: Saturday, August 22, 2026 at 08:42 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Apr 3, 2017 to Aug 21, 2026Model Insight
Volatility shocks decay with a half-life of 25 trading days, meaning a shock loses half its impact after approximately 25 days. Returns follow a Student-t distribution with v = 4.11 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 | 30.1564 | 3.48*** |
α ARCH Response to squared shocks | 0.0921 | 15.51*** |
β GARCH Volatility persistence | 0.9730 | 123.19*** |
ν DF Student-t tail thickness | 4.1125 | 6.57*** |
Persistence:
0.973
Half-life:
25 days
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