V-Lab
FII Vida Nova GJR-GARCH Volatility Analysis
Volatility prediction for Thursday, October 1st, 2026
1 Day
61.87%
increased by 1.61%
1 Week
69.52%
increased by 9.26%
1 Month
79.66%
increased by 19.40%
Analysis last updated: Thursday, October 1, 2026 at 10:34 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jun 4, 2015 to Sep 25, 2026Model Insight
Volatility shocks decay with a half-life of 4 trading days, meaning a shock loses half its impact after approximately 4 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 4-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 5.0000 | 2.25** |
| αARCH | 0.2334 | 2.04** |
| βGARCH | 0.5838 | 8.52*** |
| γleverage | 0.0193 | 0.09 |
0.827
Persistence4d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 5.0000 | 2.25** |
α ARCH Response to squared shocks | 0.2334 | 2.04** |
β GARCH Volatility persistence | 0.5838 | 8.52*** |
γ leverage Additional response to negative shocks | 0.0193 | 0.09 |
Persistence:
0.827
Half-life:
4 days
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