V-Lab
Taiwan Stock Exchange Weighted Index EGARCH Volatility Analysis
Volatility prediction for Monday, September 7th, 2026
1 Day
22.91%
decreased by 0.79%
1 Week
23.06%
decreased by 0.64%
1 Month
23.62%
decreased by 0.08%
Analysis last updated: Friday, September 4, 2026 at 07:14 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 1, 1990 to Sep 4, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 118% more than equivalent positive returns.
σ
EGARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0175 | 3.66*** |
α ARCH Response to squared shocks | 0.1629 | 10.51*** |
β GARCH Volatility persistence | 0.9851 | 352.72*** |
γ leverage Additional response to negative shocks | -0.0605 | -4.97*** |
Persistence:
0.985
Half-life:
46 days
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