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Taiwan Stock Exchange Weighted Index MEM Volatility Analysis

Volatility prediction for Monday, October 19th, 2026

1 Day

24.16%

decreased by 1.10%

1 Week

24.01%

decreased by 1.25%

1 Month

23.49%

decreased by 1.77%

Analysis last updated: Friday, October 16, 2026 at 07:06 AM UTC

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Date Range:

from

10/16/2024

to

10/16/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Taiwan Stock Exchange Weighted Index MEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Mar 31, 1993 to Oct 16, 2026

Model Insight

Volatility shocks decay with a half-life of 26 trading days, meaning a shock loses half its impact after approximately 26 days.

μ

MEM Model

Tap to view equation

Shock decay: Shocks decay with a 26-day half-life
ParamValuet-stat
ωconst0.0471
1.29
αARCH0.1242
3.62***
βGARCH0.8490
23.36***

0.973

Persistence

26d

Half-life
μ

MEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0471
1.29
α

ARCH

Response to squared shocks

0.1242
3.62***
β

GARCH

Volatility persistence

0.8490
23.36***

Persistence:

0.973

Half-life:

26 days