V-Lab
FTSE TWSE Taiwan 50 Index GARCH Volatility Analysis
Volatility prediction for Friday, August 14th, 2026
1 Day
38.67%
decreased by 1.28%
1 Week
38.27%
decreased by 1.68%
1 Month
36.77%
decreased by 3.18%
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 46 trading days, meaning a shock loses half its impact after approximately 46 days.
σ
GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0254 | 17.56*** |
α ARCH Response to squared shocks | 0.0726 | 28.91*** |
β GARCH Volatility persistence | 0.9126 | 355.11*** |
Persistence:
0.985
Half-life:
46 days
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