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Cellnex Telecom SAU GAS-GARCH Student T Volatility Analysis

Volatility prediction for Friday, August 14th, 2026

1 Day

28.41%

decreased by 2.37%

1 Week

28.30%

decreased by 2.48%

1 Month

27.99%

decreased by 2.79%

Analysis last updated: Friday, August 14, 2026 at 08:17 PM UTC

Date Range:

from

to

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 Aug 7, 2026

Model Insight

Volatility shocks decay with a half-life of 10 trading days, meaning a shock loses half its impact after approximately 10 days. Returns follow a Student-t distribution with v = 6.41 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

2.9912
10.80***
α

ARCH

Response to squared shocks

0.0931
13.76***
β

GARCH

Volatility persistence

0.9350
129.25***
ν

DF

Student-t tail thickness

6.4058
3.03***

Persistence:

0.935

Half-life:

10 days