Skip to main content
V-Lab
V-Lab

IBEX 35 Index GJR-GARCH Volatility Analysis

Volatility prediction for Tuesday, October 6th, 2026

1 Day

18.23%

decreased by 0.57%

1 Week

18.39%

decreased by 0.41%

1 Month

18.90%

increased by 0.10%

Analysis last updated: Monday, October 5, 2026 at 04:04 PM UTC

Press Delete or Backspace to remove this series.
Date Range:

from

10/05/2024

to

10/05/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of IBEX 35 Index GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Oct 2, 2026

Model Insight

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 397% more than equivalent positive returns.

σ

GJR-GARCH Model

Tap to view equation

Leverage: Negative returns increase volatility 397% more than positive returns
ParamValuet-stat
ωconst0.0435
5.70***
αARCH0.0316
2.75***
βGARCH0.8812
105.52***
γleverage0.1256
5.21***

0.976

Persistence

28d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0435
5.70***
α

ARCH

Response to squared shocks

0.0316
2.75***
β

GARCH

Volatility persistence

0.8812
105.52***
γ

leverage

Additional response to negative shocks

0.1256
5.21***

Persistence:

0.976

Half-life:

28 days