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Pngs Reva Diamond Jewellery Ltd GJR-GARCH Volatility Analysis

Volatility prediction for Thursday, October 22nd, 2026

1 Day

56.42%

decreased by 9.78%

1 Week

56.41%

decreased by 9.79%

1 Month

56.39%

decreased by 9.81%

Analysis last updated: Thursday, October 22, 2026 at 07:06 PM UTC

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Date Range:

from

10/21/2024

to

10/21/2026

6M ·

All

graph of Pngs Reva Diamond Jewellery Ltd GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Mar 4, 2026 to Oct 19, 2026

Model Insight

Volatility shocks decay with a half-life of 3 trading days, meaning a shock loses half its impact after approximately 3 days.

σ

GJR-GARCH Model

Tap to view equation

Shock decay: Shocks decay with a 3-day half-life
ParamValuet-stat
ωconst2.9402
1.84*
αARCH0.4346
1.54
βGARCH0.5176
3.57***
γleverage-0.3706
-1.17

0.767

Persistence

3d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

2.9402
1.84*
α

ARCH

Response to squared shocks

0.4346
1.54
β

GARCH

Volatility persistence

0.5176
3.57***
γ

leverage

Additional response to negative shocks

-0.3706
-1.17

Persistence:

0.767

Half-life:

3 days