V-Lab
India NSE Volatility Index GARCH Volatility Analysis
Volatility prediction for Friday, July 31st, 2026
1 Day
85.52%
decreased by 4.41%
1 Week
86.54%
decreased by 3.39%
1 Month
89.13%
decreased by 0.80%
Analysis last updated: Friday, July 31, 2026 at 08:05 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 3, 2008 to Apr 4, 2025Model Insight
Volatility shocks decay with a half-life of 10 trading days, meaning a shock loses half its impact after approximately 10 days.
σ
GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 2.4101 | 17.69*** |
α ARCH Response to squared shocks | 0.1057 | 18.16*** |
β GARCH Volatility persistence | 0.8242 | 107.22*** |
Persistence:
0.930
Half-life:
10 days
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