V-Lab
First Trust India Nifty 50 Equ GJR-GARCH Volatility Analysis
Volatility prediction for Tuesday, September 29th, 2026
1 Day
17.12%
increased by 0.59%
1 Week
17.28%
increased by 0.75%
1 Month
17.78%
increased by 1.25%
Analysis last updated: Monday, September 28, 2026 at 09:29 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Feb 28, 2012 to Sep 25, 2026Model Insight
Volatility shocks decay with a half-life of 26 trading days, meaning a shock loses half its impact after approximately 26 days.
σ
GJR-GARCH Model
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Shock decay: Shocks decay with a 26-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0408 | 2.91*** |
| αARCH | 0.0000 | 0.00 |
| βGARCH | 0.9414 | 71.36*** |
| γleverage | 0.0655 | 2.53** |
0.974
Persistence26d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0408 | 2.91*** |
α ARCH Response to squared shocks | 0.0000 | 0.00 |
β GARCH Volatility persistence | 0.9414 | 71.36*** |
γ leverage Additional response to negative shocks | 0.0655 | 2.53** |
Persistence:
0.974
Half-life:
26 days
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