V-Lab
Amrest Holdings Se GJR-GARCH Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
27.97%
decreased by 0.79%
1 Week
28.68%
decreased by 0.08%
1 Month
30.76%
increased by 2.00%
Analysis last updated: Friday, September 11, 2026 at 09:07 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Apr 27, 2005 to Sep 4, 2026Model Insight
Volatility shocks decay with a half-life of 17 trading days, meaning a shock loses half its impact after approximately 17 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 17-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.2090 | 4.09*** |
| αARCH | 0.0541 | 3.23*** |
| βGARCH | 0.8818 | 43.97*** |
| γleverage | 0.0470 | 1.57 |
0.959
Persistence17d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.2090 | 4.09*** |
α ARCH Response to squared shocks | 0.0541 | 3.23*** |
β GARCH Volatility persistence | 0.8818 | 43.97*** |
γ leverage Additional response to negative shocks | 0.0470 | 1.57 |
Persistence:
0.959
Half-life:
17 days
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