V-Lab
FTSE MIB Index GJR-GARCH Volatility Analysis
Volatility prediction for Monday, July 27th, 2026
1 Day
21.26%
decreased by 0.87%
1 Week
21.32%
decreased by 0.81%
1 Month
21.53%
decreased by 0.60%
Analysis last updated: Friday, July 24, 2026 at 04:03 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 1, 1998 to Jul 24, 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
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0304 | 22.55*** |
α ARCH Response to squared shocks | 0.0311 | 9.38*** |
β GARCH Volatility persistence | 0.8926 | 409.83*** |
γ leverage Additional response to negative shocks | 0.1244 | 20.51*** |
Persistence:
0.986
Half-life:
49 days
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