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V-Lab

Kaleon SpA GJR-GARCH Volatility Analysis

Volatility prediction for Thursday, October 29th, 2026

1 Day

18.02%

increased by 3.08%

1 Week

17.73%

increased by 2.79%

1 Month

17.53%

increased by 2.59%

Analysis last updated: Thursday, October 29, 2026 at 09:26 PM UTC

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Date Range:

from

10/28/2024

to

10/28/2026

6M ·

All

graph of Kaleon SpA GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Dec 1, 2025 to Oct 23, 2026

Model Insight

Volatility shocks decay with a half-life of 1 trading day, meaning a shock loses half its impact after approximately 1 day.

σ

GJR-GARCH Model

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Shock decay: Shocks decay with a 1-day half-life
ParamValuet-stat
ωconst0.4549
1.26
αARCH0.2686
0.70
βGARCH0.4514
1.30
γleverage-0.1924
-0.44

0.624

Persistence

1d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.4549
1.26
α

ARCH

Response to squared shocks

0.2686
0.70
β

GARCH

Volatility persistence

0.4514
1.30
γ

leverage

Additional response to negative shocks

-0.1924
-0.44

Persistence:

0.624

Half-life:

1 days