V-Lab
Taiwan Stock Exchange Weighted Index Asy. MEM Volatility Analysis
Volatility prediction for Tuesday, August 18th, 2026
1 Day
26.22%
decreased by 1.89%
1 Week
25.84%
decreased by 2.27%
1 Month
24.56%
decreased by 3.55%
Analysis last updated: Monday, August 17, 2026 at 07:03 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 31, 1993 to Aug 14, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 126% more than equivalent positive returns.
μ
AMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0518 | 6.61*** |
α ARCH Response to squared shocks | 0.0794 | 5.39*** |
β GARCH Volatility persistence | 0.8366 | 80.81*** |
γ leverage Additional response to negative shocks | 0.0999 | 4.93*** |
Persistence:
0.966
Half-life:
20 days
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