V-Lab
Deutsche Borse SDAX Performance Index (XETRA) Asy. Power MEM Volatility Analysis
Volatility prediction for Monday, August 17th, 2026
1 Day
11.74%
decreased by 0.94%
1 Week
11.55%
decreased by 1.13%
1 Month
11.04%
decreased by 1.64%
Analysis last updated: Friday, August 14, 2026 at 07:56 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 5, 2013 to Aug 14, 2026Model Insight
This asset exhibits a notable leverage effect: negative returns increase next-day volatility 59% more than equivalent positive returns. The volatility power δ = 0.80 sits below 2, so large shocks influence volatility less than quadratically, a more outlier-robust response than standard GARCH.
μ
APMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0455 | 23.12*** |
α ARCH Response to squared shocks | 0.1775 | 43.37*** |
β GARCH Volatility persistence | 0.7947 | 162.14*** |
γ leverage Additional response to negative shocks | 0.2831 | 24.75*** |
δ power Transformation power | 0.7970 | 15.75*** |
Persistence:
0.935
Half-life:
10 days
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