V-Lab
Gujarat Energy Ltd GJR-GARCH Volatility Analysis
Volatility prediction for Tuesday, September 15th, 2026
1 Day
37.53%
increased by 8.70%
1 Week
37.11%
increased by 8.28%
1 Month
35.83%
increased by 7.00%
Analysis last updated: Wednesday, September 16, 2026 at 07:46 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Sep 15, 2015 to Sep 11, 2026Model Insight
Volatility shocks decay with a half-life of 15 trading days, meaning a shock loses half its impact after approximately 15 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 15-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.1876 | 3.10*** |
| αARCH | 0.0441 | 2.43** |
| βGARCH | 0.8892 | 33.80*** |
| γleverage | 0.0430 | 1.00 |
0.955
Persistence15d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.1876 | 3.10*** |
α ARCH Response to squared shocks | 0.0441 | 2.43** |
β GARCH Volatility persistence | 0.8892 | 33.80*** |
γ leverage Additional response to negative shocks | 0.0430 | 1.00 |
Persistence:
0.955
Half-life:
15 days
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