V-Lab
Silex Systems Ltd Asy. MEM Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
70.74%
decreased by 5.17%
1 Week
71.22%
decreased by 4.69%
1 Month
72.63%
decreased by 3.28%
Analysis last updated: Friday, September 11, 2026 at 05:56 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
May 7, 1998 to Sep 4, 2026Model Insight
Volatility shocks decay with a half-life of 14 trading days, meaning a shock loses half its impact after approximately 14 days.
μ
AMEM Model
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Shock decay: Shocks decay with a 14-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.0723 | 7.46*** |
| αARCH | 0.2108 | 7.95*** |
| βGARCH | 0.7497 | 44.69*** |
| γleverage | -0.0148 | -0.32 |
0.953
Persistence14d
Half-lifeμ
AMEM Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.0723 | 7.46*** |
α ARCH Response to squared shocks | 0.2108 | 7.95*** |
β GARCH Volatility persistence | 0.7497 | 44.69*** |
γ leverage Additional response to negative shocks | -0.0148 | -0.32 |
Persistence:
0.953
Half-life:
14 days
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