V-Lab
Deutsche Telekom AG Asy. Power MEM Volatility Analysis
Volatility prediction for Thursday, September 10th, 2026
1 Day
23.91%
1 Week
23.44%
1 Month
21.84%
Analysis last updated: Thursday, September 10, 2026 at 07:05 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Nov 15, 1996 to Sep 4, 2026Model Insight
This asset exhibits a modest leverage effect: negative returns increase next-day volatility 24% more than equivalent positive returns. The volatility power δ = 1.32 sits below 2, so large shocks influence volatility less than quadratically, a more outlier-robust response than standard GARCH.
APMEM Model
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| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0231 | 4.97*** |
| αARCH | 0.1585 | 9.56*** |
| βGARCH | 0.8415 | 54.06*** |
| γleverage | 0.0824 | 3.37*** |
| δpower | 1.3233 | 5.00*** |
0.973
Persistence25d
Half-lifeAPMEM Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0231 | 4.97*** |
α ARCH Response to squared shocks | 0.1585 | 9.56*** |
β GARCH Volatility persistence | 0.8415 | 54.06*** |
γ leverage Additional response to negative shocks | 0.0824 | 3.37*** |
δ power Transformation power | 1.3233 | 5.00*** |
Persistence:
0.973
Half-life:
25 days
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