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V-Lab

CAC 40 Index GJR-GARCH Volatility Analysis

Volatility prediction for Friday, October 9th, 2026

1 Day

17.23%

decreased by 0.36%

1 Week

17.36%

decreased by 0.23%

1 Month

17.79%

increased by 0.20%

Analysis last updated: Thursday, October 8, 2026 at 04:03 PM UTC

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Date Range:

from

10/08/2024

to

10/08/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of CAC 40 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: volatility responds almost entirely to negative shocks. The ARCH response to positive shocks is negligible.

σ

GJR-GARCH Model

Tap to view equation

Leverage: volatility responds almost entirely to negative shocks
ParamValuet-stat
ωconst0.0349
4.02***
αARCH0.0114
1.31
βGARCH0.9004
111.39***
γleverage0.1324
7.02***

0.978

Persistence

31d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0349
4.02***
α

ARCH

Response to squared shocks

0.0114
1.31
β

GARCH

Volatility persistence

0.9004
111.39***
γ

leverage

Additional response to negative shocks

0.1324
7.02***

Persistence:

0.978

Half-life:

31 days