V-Lab
FTSE TWSE Taiwan 50 Index MEM Volatility Analysis
Volatility prediction for Friday, August 14th, 2026
1 Day
34.54%
decreased by 1.83%
1 Week
34.28%
decreased by 2.09%
1 Month
33.29%
decreased by 3.08%
Analysis last updated: Friday, August 14, 2026 at 10:25 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 15, 2003 to Jun 18, 2026Model Insight
Volatility shocks decay with a half-life of 54 trading days, meaning a shock loses half its impact after approximately 54 days.
μ
MEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0242 | 4.96*** |
α ARCH Response to squared shocks | 0.1330 | 29.47*** |
β GARCH Volatility persistence | 0.8541 | 268.60*** |
Persistence:
0.987
Half-life:
54 days
Other MEM Analyses on Equity Indices