V-Lab
Inmocemento S A AGARCH Volatility Analysis
Volatility prediction for Tuesday, September 8th, 2026
1 Day
23.83%
decreased by 0.40%
1 Week
27.78%
increased by 3.55%
1 Month
29.91%
increased by 5.68%
Analysis last updated: Tuesday, September 8, 2026 at 09:49 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Nov 12, 2024 to Sep 4, 2026Model Insight
Volatility shocks decay with a half-life of 1 trading day, meaning a shock loses half its impact after approximately 1 day.
σ
AGARCH Model
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Shock decay: Shocks decay with a 1-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.5110 | 5.04*** |
| αARCH | 0.2813 | 3.36*** |
| βGARCH | 0.3011 | 3.75*** |
| γleverage | 0.3830 | 0.87 |
0.582
Persistence1d
Half-lifeσ
AGARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.5110 | 5.04*** |
α ARCH Response to squared shocks | 0.2813 | 3.36*** |
β GARCH Volatility persistence | 0.3011 | 3.75*** |
γ leverage Additional response to negative shocks | 0.3830 | 0.87 |
Persistence:
0.582
Half-life:
1 days
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