V-Lab
Bellini Nautica S P A GJR-GARCH Volatility Analysis
Volatility prediction for Wednesday, August 5th, 2026
1 Day
45.99%
decreased by 6.72%
1 Week
44.18%
decreased by 8.53%
1 Month
43.15%
decreased by 9.56%
Analysis last updated: Wednesday, August 5, 2026 at 07:11 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jun 15, 2022 to Jul 31, 2026Model Insight
Volatility shocks decay with a half-life of 1 trading day, meaning a shock loses half its impact after approximately 1 day.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 3.2363 | 21.74*** |
α ARCH Response to squared shocks | 0.3332 | 8.80*** |
β GARCH Volatility persistence | 0.2048 | 7.51*** |
γ leverage Additional response to negative shocks | 0.0332 | 0.55 |
Persistence:
0.555
Half-life:
1 days
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