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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

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Taiwan Stock Exchange Weighted Index AMEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Mar 31, 1993 to Aug 14, 2026

Model 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

ParameterValuet-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