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V-Lab
V-Lab

Taiwan Semiconductor Mfg Co Asy. Power MEM Volatility Analysis

Volatility prediction for Tuesday, September 8th, 2026

1 Day

25.66%

decreased by 0.52%

1 Week

25.03%

decreased by 1.15%

1 Month

23.04%

decreased by 3.14%

Analysis last updated: Tuesday, September 8, 2026 at 09:50 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Taiwan Semiconductor Mfg Co APMEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 18, 1995 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. The volatility power δ = 1.04 sits below 2, so large shocks influence volatility less than quadratically, a more outlier-robust response than standard GARCH.

μ

APMEM Model

Tap to view equation

Shock decay: Shocks decay with a 20-day half-lifeδ = 1.04 · sub-quadratic power
ParamValuet-stat
ωconst0.0346
4.42***
αARCH0.1503
15.79***
βGARCH0.8455
85.22***
γleverage0.0489
1.90*
δpower1.0411
4.21***

0.966

Persistence

20d

Half-life
μ

APMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0346
4.42***
α

ARCH

Response to squared shocks

0.1503
15.79***
β

GARCH

Volatility persistence

0.8455
85.22***
γ

leverage

Additional response to negative shocks

0.0489
1.90*
δ

power

Transformation power

1.0411
4.21***

Persistence:

0.966

Half-life:

20 days