Skip to main content
V-Lab
V-Lab

Landi Renzo SPA GAS-GARCH Student T Volatility Analysis

Volatility prediction for Wednesday, October 28th, 2026

1 Day

52.33%

increased by 9.52%

1 Week

52.37%

increased by 9.56%

1 Month

52.49%

increased by 9.68%

Analysis last updated: Wednesday, October 28, 2026 at 07:03 PM UTC

Press Delete or Backspace to remove this series.
Date Range:

from

10/27/2024

to

10/27/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Landi Renzo SPA GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jun 26, 2007 to Oct 23, 2026

Model Insight

Volatility shocks decay with a half-life of 9 trading days, meaning a shock loses half its impact after approximately 9 days. Returns follow a Student-t distribution with v = 3.26 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

Shock decay: Shocks decay with a 9-day half-lifev = 3.26 · fat tails
ParamValuet-stat
ωlong-run11.0419
1.71*
αscore0.1544
5.75***
βpersistence0.9226
20.71***
νDF3.2593
3.68***

0.923

Persistence

9d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

long-run

Long-run variance given a price move

11.0419
1.71*
α

score

Weight on the scaled score

0.1544
5.75***
β

persistence

Volatility persistence

0.9226
20.71***
ν

DF

Student-t tail thickness

3.2593
3.68***

Persistence:

0.923

Half-life:

9 days