Skip to main content
V-Lab
V-Lab

Nikkei 225 EGARCH Volatility Analysis

Volatility prediction for Thursday, September 17th, 2026

1 Day

21.84%

decreased by 1.26%

1 Week

21.91%

decreased by 1.19%

1 Month

22.13%

decreased by 0.97%

Analysis last updated: Wednesday, September 16, 2026 at 09:03 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Nikkei 225 EGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Sep 11, 2026

Model Insight

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 239% more than equivalent positive returns.

σ

EGARCH Model

Tap to view equation

Leverage: Negative returns increase volatility 239% more than positive returns
ParamValuet-stat
ωconst0.0278
2.89***
αARCH0.1908
9.82***
βGARCH0.9617
172.28***
γleverage-0.1039
-5.63***

0.962

Persistence

18d

Half-life
σ

EGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0278
2.89***
α

ARCH

Response to squared shocks

0.1908
9.82***
β

GARCH

Volatility persistence

0.9617
172.28***
γ

leverage

Additional response to negative shocks

-0.1039
-5.63***

Persistence:

0.962

Half-life:

18 days