V-Lab
Pngs Reva Diamond Jewellery Ltd GJR-GARCH Volatility Analysis
Volatility prediction for Wednesday, August 5th, 2026
1 Day
79.80%
increased by 36.50%
1 Week
56.44%
increased by 13.14%
1 Month
46.65%
increased by 3.35%
Analysis last updated: Wednesday, August 5, 2026 at 07:08 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 4, 2026 to Jul 31, 2026Model Insight
Volatility shocks decay with a half-life of 1 trading day, meaning a shock loses half its impact after approximately 1 day.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 5.0000 | 7.70*** |
α ARCH Response to squared shocks | 0.0933 | 2.00** |
β GARCH Volatility persistence | 0.1912 | 2.23** |
γ leverage Additional response to negative shocks | 0.0756 | 0.88 |
Persistence:
0.322
Half-life:
1 days
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