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Ardagh Metal Packaging S A GJR-GARCH Volatility Analysis

Volatility prediction for Tuesday, September 22nd, 2026

1 Day

47.09%

increased by 0.63%

1 Week

52.29%

increased by 5.83%

1 Month

58.59%

increased by 12.13%

Analysis last updated: Tuesday, September 22, 2026 at 07:13 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

All

graph of Ardagh Metal Packaging S A GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Aug 11, 2021 to Sep 18, 2026

Model Insight

Volatility shocks decay with a half-life of 3 trading days, meaning a shock loses half its impact after approximately 3 days.

σ

GJR-GARCH Model

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Shock decay: Shocks decay with a 3-day half-life
ParamValuet-stat
ωconst2.9827
3.82***
αARCH0.2419
2.87***
βGARCH0.6317
9.50***
γleverage-0.1413
-1.13

0.803

Persistence

3d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

2.9827
3.82***
α

ARCH

Response to squared shocks

0.2419
2.87***
β

GARCH

Volatility persistence

0.6317
9.50***
γ

leverage

Additional response to negative shocks

-0.1413
-1.13

Persistence:

0.803

Half-life:

3 days