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V-Lab

CAC 40 Index GJR-GARCH Volatility Analysis

Volatility prediction for Thursday, August 6th, 2026

1 Day

13.24%

decreased by 0.36%

1 Week

13.61%

increased by 0.01%

1 Month

14.80%

increased by 1.20%

Analysis last updated: Wednesday, August 5, 2026 at 04:03 PM UTC

Date Range:

from

to

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 Jul 31, 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

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0353
16.10***
α

ARCH

Response to squared shocks

0.0112
5.13***
β

GARCH

Volatility persistence

0.8999
443.08***
γ

leverage

Additional response to negative shocks

0.1335
28.16***

Persistence:

0.978

Half-life:

31 days