Vulcan Infrastructure and Power Inc GJR-GARCH Volatility Analysis
Volatility prediction for Tuesday, October 27th, 2026
1 Day
93.09%
decreased by 0.62%
1 Week
97.91%
increased by 4.20%
1 Month
108.36%
increased by 14.65%
Analysis last updated: Monday, October 26, 2026 at 09:32 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Sep 15, 2021 to Oct 23, 2026Model Insight
Volatility shocks decay with a half-life of 8 trading days, meaning a shock loses half its impact after approximately 8 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 8-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 5.0000 | 2.14** |
| αARCH | 0.0776 | 1.74* |
| βGARCH | 0.8419 | 15.08*** |
| γleverage | -0.0138 | -0.15 |
0.913
Persistence8d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 5.0000 | 2.14** |
α ARCH Response to squared shocks | 0.0776 | 1.74* |
β GARCH Volatility persistence | 0.8419 | 15.08*** |
γ leverage Additional response to negative shocks | -0.0138 | -0.15 |
Persistence:
0.913
Half-life:
8 days
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