V-Lab
Yw Co Ltd Asy. MEM Volatility Analysis
Volatility prediction for Wednesday, September 9th, 2026
1 Day
28.10%
increased by 0.10%
1 Week
28.96%
increased by 0.96%
1 Month
31.95%
increased by 3.95%
Analysis last updated: Wednesday, September 9, 2026 at 08:07 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Apr 11, 2003 to Sep 4, 2026Model Insight
Volatility shocks decay with a half-life of 61 trading days, meaning a shock loses half its impact after approximately 61 days.
μ
AMEM Model
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Shock decay: Shocks decay with a 61-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.1336 | 3.30*** |
| αARCH | 0.1472 | 6.10*** |
| βGARCH | 0.8461 | 53.29*** |
| γleverage | -0.0089 | -0.20 |
0.989
Persistence61d
Half-lifeμ
AMEM Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.1336 | 3.30*** |
α ARCH Response to squared shocks | 0.1472 | 6.10*** |
β GARCH Volatility persistence | 0.8461 | 53.29*** |
γ leverage Additional response to negative shocks | -0.0089 | -0.20 |
Persistence:
0.989
Half-life:
61 days
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