V-Lab
Deutsche Borse SDAX Performance Index (XETRA) MEM Volatility Analysis
Volatility prediction for Monday, September 7th, 2026
1 Day
12.77%
decreased by 1.15%
1 Week
13.23%
decreased by 0.69%
1 Month
14.64%
increased by 0.72%
Analysis last updated: Friday, September 4, 2026 at 08:10 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 5, 2013 to Sep 4, 2026Model Insight
Volatility shocks decay with a half-life of 22 trading days, meaning a shock loses half its impact after approximately 22 days.
μ
MEM Model
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Shock decay: Shocks decay with a 22-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0444 | 1.86* |
| αARCH | 0.2250 | 7.40*** |
| βGARCH | 0.7443 | 34.03*** |
0.969
Persistence22d
Half-lifeμ
MEM Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0444 | 1.86* |
α ARCH Response to squared shocks | 0.2250 | 7.40*** |
β GARCH Volatility persistence | 0.7443 | 34.03*** |
Persistence:
0.969
Half-life:
22 days
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