V-Lab
Kei Industries Ltd GJR-GARCH Volatility Analysis
Volatility prediction for Tuesday, September 15th, 2026
1 Day
53.83%
decreased by 1.79%
1 Week
53.73%
decreased by 1.89%
1 Month
53.42%
decreased by 2.20%
Analysis last updated: Wednesday, September 16, 2026 at 07:35 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jul 5, 2006 to Sep 11, 2026Model Insight
Volatility shocks decay with a half-life of 22 trading days, meaning a shock loses half its impact after approximately 22 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 22-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.3355 | 4.23*** |
| αARCH | 0.0619 | 4.53*** |
| βGARCH | 0.8973 | 55.75*** |
| γleverage | 0.0195 | 0.70 |
0.969
Persistence22d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.3355 | 4.23*** |
α ARCH Response to squared shocks | 0.0619 | 4.53*** |
β GARCH Volatility persistence | 0.8973 | 55.75*** |
γ leverage Additional response to negative shocks | 0.0195 | 0.70 |
Persistence:
0.969
Half-life:
22 days
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