V-Lab
Swiss Market Index EGARCH Volatility Analysis
Volatility prediction for Friday, September 4th, 2026
1 Day
11.32%
decreased by 0.59%
1 Week
11.67%
decreased by 0.24%
1 Month
12.83%
increased by 0.92%
Analysis last updated: Thursday, September 3, 2026 at 05:04 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Aug 28, 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
EGARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0019 | 0.78 |
α ARCH Response to squared shocks | 0.1849 | 42.20*** |
β GARCH Volatility persistence | 0.9562 | 461.91*** |
γ leverage Additional response to negative shocks | -0.1246 | -24.67*** |
Persistence:
0.956
Half-life:
15 days
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