V-Lab
Deutsche Borse SDAX Performance Index (XETRA) GJR-GARCH Volatility Analysis
Volatility prediction for Tuesday, September 29th, 2026
1 Day
14.78%
decreased by 0.66%
1 Week
15.00%
decreased by 0.44%
1 Month
15.66%
increased by 0.22%
Analysis last updated: Monday, September 28, 2026 at 07:10 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 5, 2013 to Sep 25, 2026Model Insight
This asset exhibits a strong leverage effect: volatility responds almost entirely to negative shocks. The ARCH response to positive shocks is negligible.
σ
GJR-GARCH Model
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Leverage: volatility responds almost entirely to negative shocks
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0499 | 4.76*** |
| αARCH | 0.0305 | 1.66* |
| βGARCH | 0.8480 | 50.48*** |
| γleverage | 0.1596 | 3.34*** |
0.958
Persistence16d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0499 | 4.76*** |
α ARCH Response to squared shocks | 0.0305 | 1.66* |
β GARCH Volatility persistence | 0.8480 | 50.48*** |
γ leverage Additional response to negative shocks | 0.1596 | 3.34*** |
Persistence:
0.958
Half-life:
16 days
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