V-Lab
Pngs Reva Diamond Jewellery Ltd GARCH Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
52.33%
decreased by 6.27%
1 Week
51.74%
decreased by 6.86%
1 Month
51.43%
decreased by 7.17%
Analysis last updated: Friday, September 11, 2026 at 07:50 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 4, 2026 to Sep 4, 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
GARCH Model
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Shock decay: Shocks decay with a 1-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 5.0000 | 2.16** |
| αARCH | 0.2461 | 1.46 |
| βGARCH | 0.2756 | 1.06 |
0.522
Persistence1d
Half-lifeσ
GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 5.0000 | 2.16** |
α ARCH Response to squared shocks | 0.2461 | 1.46 |
β GARCH Volatility persistence | 0.2756 | 1.06 |
Persistence:
0.522
Half-life:
1 days
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