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V-Lab

IBEX 35 Index EGARCH Volatility Analysis

Volatility prediction for Wednesday, September 16th, 2026

1 Day

15.36%

decreased by 0.79%

1 Week

15.63%

decreased by 0.52%

1 Month

16.58%

increased by 0.43%

Analysis last updated: Tuesday, September 15, 2026 at 04:15 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of IBEX 35 Index 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 243% more than equivalent positive returns.

σ

EGARCH Model

Tap to view equation

Leverage: Negative returns increase volatility 243% more than positive returns
ParamValuet-stat
ωconst0.0159
2.05**
αARCH0.1585
7.31***
βGARCH0.9724
227.79***
γleverage-0.0869
-6.05***

0.972

Persistence

25d

Half-life
σ

EGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0159
2.05**
α

ARCH

Response to squared shocks

0.1585
7.31***
β

GARCH

Volatility persistence

0.9724
227.79***
γ

leverage

Additional response to negative shocks

-0.0869
-6.05***

Persistence:

0.972

Half-life:

25 days