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V-Lab

Taiwan Stock Exchange Weighted Index Asy. MEM Volatility Analysis

Volatility prediction for Monday, September 7th, 2026

1 Day

21.75%

decreased by 0.88%

1 Week

21.61%

decreased by 1.02%

1 Month

21.16%

decreased by 1.47%

Analysis last updated: Friday, September 4, 2026 at 07:14 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 Sep 4, 2026

Model Insight

Volatility shocks decay with a half-life of 20 trading days, meaning a shock loses half its impact after approximately 20 days.

μ

AMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0519
1.66*
α

ARCH

Response to squared shocks

0.0795
1.35
β

GARCH

Volatility persistence

0.8362
20.31***
γ

leverage

Additional response to negative shocks

0.1001
1.23

Persistence:

0.966

Half-life:

20 days