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V-Lab
V-Lab

Marex Group Ltd GJR-GARCH Volatility Analysis

Volatility prediction for Monday, September 14th, 2026

1 Day

40.14%

increased by 0.14%

1 Week

41.44%

increased by 1.44%

1 Month

45.50%

increased by 5.50%

Analysis last updated: Friday, September 11, 2026 at 11:11 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

All

graph of Marex Group Ltd GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Apr 25, 2024 to Sep 11, 2026

Model Insight

Volatility shocks decay with a half-life of 24 trading days, meaning a shock loses half its impact after approximately 24 days.

σ

GJR-GARCH Model

Tap to view equation

Shock decay: Shocks decay with a 24-day half-life
ParamValuet-stat
ωconst0.4029
0.78
αARCH0.0000
0.00
βGARCH0.8814
12.71***
γleverage0.1792
1.15

0.971

Persistence

24d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.4029
0.78
α

ARCH

Response to squared shocks

0.0000
0.00
β

GARCH

Volatility persistence

0.8814
12.71***
γ

leverage

Additional response to negative shocks

0.1792
1.15

Persistence:

0.971

Half-life:

24 days