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Deutsche Telekom AG GJR-GARCH Volatility Analysis

Volatility prediction for Thursday, October 22nd, 2026

1 Day

33.20%

decreased by 1.10%

1 Week

33.07%

decreased by 1.23%

1 Month

32.62%

decreased by 1.68%

Analysis last updated: Thursday, October 22, 2026 at 06:42 PM UTC

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Date Range:

from

10/21/2024

to

10/21/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Deutsche Telekom AG GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Nov 15, 1996 to Oct 16, 2026

Model Insight

Volatility shocks decay with a half-life of 51 trading days, meaning a shock loses half its impact after approximately 51 days.

σ

GJR-GARCH Model

Tap to view equation

Shock decay: Shocks decay with a 51-day half-life
ParamValuet-stat
ωconst0.0423
3.85***
αARCH0.0629
5.59***
βGARCH0.9149
84.29***
γleverage0.0174
0.97

0.987

Persistence

51d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0423
3.85***
α

ARCH

Response to squared shocks

0.0629
5.59***
β

GARCH

Volatility persistence

0.9149
84.29***
γ

leverage

Additional response to negative shocks

0.0174
0.97

Persistence:

0.987

Half-life:

51 days