V-Lab
Pngs Reva Diamond Jewellery Ltd Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Tuesday, August 25th, 2026
1 Day
44.91%
increased by 2.95%
1 Week
45.20%
increased by 3.24%
1 Month
45.26%
increased by 3.30%
Analysis last updated: Tuesday, August 25, 2026 at 07:01 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 4, 2026 to Aug 21, 2026Model Insight
This model fits a time-varying baseline (a spline), so volatility mean-reverts toward a slowly-shifting long-run level rather than a constant.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.5112 | 3.13*** |
α ARCH Response to squared shocks | 0.1477 | 1.44 |
β GARCH Volatility persistence | 0.0000 | 0.00 |
Spline Coefficients
K=4
| γ1 | 161.0241 | 1.28 |
| γ2 | -300.4742 | -1.47 |
| γ3 | 314.7589 | 2.17** |
| γ4 | -253.5217 | -2.77*** |
Persistence:
0.148
Half-life:
0 days
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