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V-Lab

Nikkei 225 Asy. MEM Volatility Analysis

Volatility prediction for Thursday, October 15th, 2026

1 Day

24.82%

decreased by 0.94%

1 Week

24.75%

decreased by 1.01%

1 Month

24.49%

decreased by 1.27%

Analysis last updated: Wednesday, October 14, 2026 at 07:02 AM UTC

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Date Range:

from

10/14/2024

to

10/14/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Nikkei 225 AMEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 3, 1990 to Oct 9, 2026

Model Insight

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 115% more than equivalent positive returns.

μ

AMEM Model

Tap to view equation

Leverage: Negative returns increase volatility 115% more than positive returns
ParamValuet-stat
ωconst0.0652
9.42***
αARCH0.1242
8.60***
βGARCH0.7743
69.36***
γleverage0.1434
5.04***

0.970

Persistence

23d

Half-life
μ

AMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0652
9.42***
α

ARCH

Response to squared shocks

0.1242
8.60***
β

GARCH

Volatility persistence

0.7743
69.36***
γ

leverage

Additional response to negative shocks

0.1434
5.04***

Persistence:

0.970

Half-life:

23 days