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V-Lab
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

Date Range:

from

to

6M ·

All

graph of Pngs Reva Diamond Jewellery Ltd SGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Mar 4, 2026 to Sep 4, 2026

Model 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
ParamValuet-stat
ωconst1.5098
3.39***
αARCH0.0866
1.03
βGARCH0.0000
0.00
γi Spline Coefficients
K=4
γ1123.5680
1.61
γ2-233.2506
-1.82*
γ3296.4913
2.47**
γ4-486.0106
-2.76***

0.087

Persistence

0d

Half-life
τ

Spline-GARCH Model

Tap to view equation

ParameterValuet-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
γi Spline Coefficients
K=4
γ1123.5680
1.61
γ2-233.2506
-1.82*
γ3296.4913
2.47**
γ4-486.0106
-2.76***

Persistence:

0.087

Half-life:

0 days