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V-Lab

Deutsche Telekom AG MEM Volatility Analysis

Volatility prediction for Friday, September 11th, 2026

1 Day

23.78%

decreased by 0.26%

1 Week

23.94%

decreased by 0.10%

1 Month

24.55%

increased by 0.51%

Analysis last updated: Friday, September 11, 2026 at 06:59 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

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graph of Deutsche Telekom AG MEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Nov 15, 1996 to Sep 4, 2026

Model Insight

With persistence 0.994, volatility shocks have a half-life of 114 trading days (~0.5 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

μ

MEM Model

Tap to view equation

High persistence: persistence 0.994, shock half-life ~114 days
ParamValuet-stat
ωconst0.0289
1.55
αARCH0.1578
10.48***
βGARCH0.8361
65.30***

0.994

Persistence

114d

Half-life
μ

MEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0289
1.55
α

ARCH

Response to squared shocks

0.1578
10.48***
β

GARCH

Volatility persistence

0.8361
65.30***

Persistence:

0.994

Half-life:

114 days