Deutsche Borse SDAX Performance Index (XETRA) MEM Volatility Analysis
Volatility prediction for Wednesday, July 22nd, 2026
1 Day
16.00%
decreased by 0.45%
1 Week
16.21%
decreased by 0.24%
1 Month
16.88%
increased by 0.43%
Analysis last updated: Tuesday, July 21, 2026 at 07:20 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 5, 2013 to Jul 17, 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
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0449 | 7.47*** |
α ARCH Response to squared shocks | 0.2267 | 29.56*** |
β GARCH Volatility persistence | 0.7428 | 134.86*** |
Persistence:
0.969
Half-life:
22 days
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