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V-Lab

Leonardo SpA GJR-GARCH Volatility Analysis

Volatility prediction for Wednesday, August 5th, 2026

1 Day

32.17%

increased by 0.93%

1 Week

32.52%

increased by 1.28%

1 Month

33.77%

increased by 2.53%

Analysis last updated: Wednesday, August 5, 2026 at 07:17 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Leonardo SpA GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 1, 1990 to Jul 31, 2026

Model Insight

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 114% more than equivalent positive returns.

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.1196
17.05***
α

ARCH

Response to squared shocks

0.0396
11.80***
β

GARCH

Volatility persistence

0.9201
291.73***
γ

leverage

Additional response to negative shocks

0.0452
4.81***

Persistence:

0.982

Half-life:

39 days