V-Lab
Deutsche Borse TecDAX Total Return Selection Index GJR-GARCH Volatility Analysis
Volatility prediction for Thursday, August 20th, 2026
1 Day
16.11%
decreased by 0.67%
1 Week
16.48%
decreased by 0.30%
1 Month
17.77%
increased by 0.99%
Analysis last updated: Wednesday, August 19, 2026 at 07:54 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1998 to Aug 14, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 149% more than equivalent positive returns.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0369 | 23.93*** |
α ARCH Response to squared shocks | 0.0578 | 18.10*** |
β GARCH Volatility persistence | 0.8866 | 433.55*** |
γ leverage Additional response to negative shocks | 0.0862 | 13.99*** |
Persistence:
0.988
Half-life:
55 days
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