V-Lab
Unicap Modaraba GJR-GARCH Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
95.83%
increased by 5.80%
1 Week
101.59%
increased by 11.56%
1 Month
116.69%
increased by 26.66%
Analysis last updated: Friday, September 11, 2026 at 08:51 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Apr 27, 2012 to Sep 4, 2026Model Insight
Volatility shocks decay with a half-life of 13 trading days, meaning a shock loses half its impact after approximately 13 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 13-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 4.2288 | 3.00*** |
| αARCH | 0.0904 | 2.48** |
| βGARCH | 0.8523 | 29.37*** |
| γleverage | 0.0129 | 0.17 |
0.949
Persistence13d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 4.2288 | 3.00*** |
α ARCH Response to squared shocks | 0.0904 | 2.48** |
β GARCH Volatility persistence | 0.8523 | 29.37*** |
γ leverage Additional response to negative shocks | 0.0129 | 0.17 |
Persistence:
0.949
Half-life:
13 days
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