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V-Lab

Cellnex Telecom SAU GJR-GARCH Volatility Analysis

Volatility prediction for Monday, August 24th, 2026

1 Day

25.34%

decreased by 1.07%

1 Week

25.62%

decreased by 0.79%

1 Month

26.39%

decreased by 0.02%

Analysis last updated: Sunday, August 23, 2026 at 01:45 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Cellnex Telecom SAU GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

May 7, 2015 to Aug 21, 2026

Model Insight

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 184% more than equivalent positive returns.

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.1735
16.18***
α

ARCH

Response to squared shocks

0.0470
9.56***
β

GARCH

Volatility persistence

0.8534
134.09***
γ

leverage

Additional response to negative shocks

0.0865
7.28***

Persistence:

0.944

Half-life:

12 days