Skip to main content
V-Lab
V-Lab

Deutsche Telekom AG GAS-GARCH Student T Volatility Analysis

Volatility prediction for Thursday, October 22nd, 2026

1 Day

25.24%

decreased by 0.57%

1 Week

25.29%

decreased by 0.52%

1 Month

25.49%

decreased by 0.32%

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

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

from

10/21/2024

to

10/21/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Deutsche Telekom AG GAS-GARCH-T

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

With persistence 0.996, volatility shocks have a half-life of 161 trading days (~0.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. Returns follow a Student-t distribution with v = 4.92 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

High persistence: persistence 0.996, shock half-life ~161 daysv = 4.92 · fat tails
ParamValuet-stat
ωlong-run3.7587
1.43
αscore0.0576
16.56***
βpersistence0.9957
333.12***
νDF4.9246
5.41***

0.996

Persistence

161d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

long-run

Long-run variance given a price move

3.7587
1.43
α

score

Weight on the scaled score

0.0576
16.56***
β

persistence

Volatility persistence

0.9957
333.12***
ν

DF

Student-t tail thickness

4.9246
5.41***

Persistence:

0.996

Half-life:

161 days