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Cellnex Telecom SAU GAS-GARCH Student T Volatility Analysis

Volatility prediction for Monday, October 26th, 2026

1 Day

26.35%

decreased by 0.93%

1 Week

26.46%

decreased by 0.82%

1 Month

26.77%

decreased by 0.51%

Analysis last updated: Sunday, October 25, 2026 at 07:57 AM UTC

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Date Range:

from

10/23/2024

to

10/23/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Cellnex Telecom SAU GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

May 7, 2015 to Oct 23, 2026

Model Insight

Volatility shocks decay with a half-life of 11 trading days, meaning a shock loses half its impact after approximately 11 days. Returns follow a Student-t distribution with v = 6.87 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 11-day half-lifev = 6.87 · fat tails
ParamValuet-stat
ωlong-run3.0144
2.86***
αscore0.0881
3.51***
βpersistence0.9399
37.30***
νDF6.8662
0.69

0.940

Persistence

11d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

long-run

Long-run variance given a price move

3.0144
2.86***
α

score

Weight on the scaled score

0.0881
3.51***
β

persistence

Volatility persistence

0.9399
37.30***
ν

DF

Student-t tail thickness

6.8662
0.69

Persistence:

0.940

Half-life:

11 days