VIEL & Cie SA GJR-GARCH Volatility Analysis
Volatility prediction for Tuesday, July 14th, 2026
1 Day
27.37%
decreased by 1.36%
1 Week
29.05%
increased by 0.32%
1 Month
32.02%
increased by 3.29%
Analysis last updated: Tuesday, July 14, 2026 at 06:27 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 1, 1990 to Jul 10, 2026Model Insight
This asset exhibits a modest leverage effect: negative returns increase next-day volatility 22% more than equivalent positive returns.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.5826 | 27.19*** |
α ARCH Response to squared shocks | 0.1879 | 21.07*** |
β GARCH Volatility persistence | 0.6675 | 87.85*** |
γ leverage Additional response to negative shocks | 0.0405 | 2.48** |
Persistence:
0.876
Half-life:
5 days
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