Deutsche Borse TecDAX Total Return Selection Index Asy. Power MEM Volatility Analysis
Volatility prediction for Wednesday, October 28th, 2026
1 Day
19.17%
1 Week
18.58%
1 Month
16.89%
Analysis last updated: Tuesday, October 27, 2026 at 09:56 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jun 30, 1999 to Oct 23, 2026Model Insight
This asset exhibits a modest leverage effect: negative returns increase next-day volatility 39% more than equivalent positive returns. The volatility power δ = 1.08 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 | 0.0425 | 7.42*** |
| αARCH | 0.2090 | 17.07*** |
| βGARCH | 0.7796 | 63.68*** |
| γleverage | 0.1521 | 6.15*** |
| δpower | 1.0807 | 5.92*** |
0.948
Persistence13d
Half-lifeAPMEM Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0425 | 7.42*** |
α ARCH Response to squared shocks | 0.2090 | 17.07*** |
β GARCH Volatility persistence | 0.7796 | 63.68*** |
γ leverage Additional response to negative shocks | 0.1521 | 6.15*** |
δ power Transformation power | 1.0807 | 5.92*** |
Persistence:
0.948
Half-life:
13 days
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