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V-Lab
V-Lab

Pngs Reva Diamond Jewellery Ltd GAS-GARCH Student T Volatility Analysis

Volatility prediction for Monday, October 19th, 2026

1 Day

80.93%

increased by 11.79%

1 Week

68.56%

decreased by 0.58%

1 Month

62.93%

decreased by 6.21%

Analysis last updated: Saturday, October 17, 2026 at 10:41 PM UTC

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Date Range:

from

10/16/2024

to

10/16/2026

6M ·

All

graph of Pngs Reva Diamond Jewellery Ltd GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Mar 4, 2026 to Oct 16, 2026

Model Insight

Volatility shocks decay with a half-life of 1 trading day, meaning a shock loses half its impact after approximately 1 day. Returns follow a Student-t distribution with v = 3.42 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

Shock decay: Shocks decay with a 1-day half-lifev = 3.42 · fat tails
ParamValuet-stat
ωconst14.7765
0.97
αARCH0.1537
0.40
βGARCH0.4300
1.03
νDF3.4191
0.24

0.430

Persistence

1d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

14.7765
0.97
α

ARCH

Response to squared shocks

0.1537
0.40
β

GARCH

Volatility persistence

0.4300
1.03
ν

DF

Student-t tail thickness

3.4191
0.24

Persistence:

0.430

Half-life:

1 days