V-Lab
Luxembourg Stock Exchange LuxX Index GJR-GARCH Volatility Analysis
Volatility prediction for Monday, July 27th, 2026
1 Day
18.07%
decreased by 0.66%
1 Week
18.20%
decreased by 0.53%
1 Month
18.65%
decreased by 0.08%
Analysis last updated: Saturday, July 25, 2026 at 09:47 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 4, 1999 to Jul 24, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 101% more than equivalent positive returns.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0354 | 20.48*** |
α ARCH Response to squared shocks | 0.0592 | 19.58*** |
β GARCH Volatility persistence | 0.8909 | 309.99*** |
γ leverage Additional response to negative shocks | 0.0600 | 9.43*** |
Persistence:
0.980
Half-life:
34 days
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