V-Lab
ZIP Co Ltd GJR-GARCH Volatility Analysis
Volatility prediction for Monday, August 24th, 2026
1 Day
121.61%
increased by 20.11%
1 Week
121.18%
increased by 19.68%
1 Month
119.58%
increased by 18.08%
Analysis last updated: Saturday, August 22, 2026 at 08:41 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 57 trading days, meaning a shock loses half its impact after approximately 57 days.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.4946 | 8.45*** |
α ARCH Response to squared shocks | 0.0781 | 11.87*** |
β GARCH Volatility persistence | 0.9082 | 131.17*** |
γ leverage Additional response to negative shocks | 0.0032 | 0.37 |
Persistence:
0.988
Half-life:
57 days
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