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V-Lab

Taiwan Stock Exchange Weighted Index Asy. MEM Volatility Analysis

Volatility prediction for Monday, July 20th, 2026

1 Day

45.72%

increased by 12.11%

1 Week

44.48%

increased by 10.87%

1 Month

40.25%

increased by 6.64%

Analysis last updated: Friday, July 17, 2026 at 07:04 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 Jul 17, 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

0.0514
6.58***
α

ARCH

Response to squared shocks

0.0790
5.39***
β

GARCH

Volatility persistence

0.8375
81.47***
γ

leverage

Additional response to negative shocks

0.0995
4.91***

Persistence:

0.966

Half-life:

20 days