V-Lab
Pngs Reva Diamond Jewellery Ltd Spline-GARCH Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
29.35%
decreased by 3.97%
1 Week
27.66%
decreased by 5.66%
1 Month
27.29%
decreased by 6.03%
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
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
Spline-GARCH Model
Tap to view equation
Time-varying baseline: volatility reverts to a slowly-shifting spline trend
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.5098 | 3.39*** |
| αARCH | 0.0866 | 1.03 |
| βGARCH | 0.0000 | 0.00 |
Spline Coefficients
K=4
| γ1 | 123.5680 | 1.61 |
| γ2 | -233.2506 | -1.82* |
| γ3 | 296.4913 | 2.47** |
| γ4 | -486.0106 | -2.76*** |
0.087
Persistence0d
Half-lifeτ
Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.5098 | 3.39*** |
α ARCH Response to squared shocks | 0.0866 | 1.03 |
β GARCH Volatility persistence | 0.0000 | 0.00 |
Spline Coefficients
K=4
| γ1 | 123.5680 | 1.61 |
| γ2 | -233.2506 | -1.82* |
| γ3 | 296.4913 | 2.47** |
| γ4 | -486.0106 | -2.76*** |
Persistence:
0.087
Half-life:
0 days
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