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V-Lab

Pngs Reva Diamond Jewellery Ltd MF2-GARCH Volatility Analysis

Volatility prediction for Monday, October 19th, 2026

1 Day

92.83%

decreased by 11.38%

1 Week

102.95%

decreased by 1.26%

1 Month

108.61%

increased by 4.40%

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 MF2-GARCH

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.

σ

MF2-GARCH Model

Tap to view equation

Shock decay: Shocks decay with a 1-day half-life
ParamValuet-stat
mwindow51
αARCH0.1978
βGARCH0.0398
γleverage0.4896
λ₁tau intercept3.0260
λ₂forecast adj.0.1184
λ₃tau persistence0.8687

0.482

Persistence

1d

Half-life
σ

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

51
α

ARCH

Response to squared shocks

0.1978
β

GARCH

Volatility persistence

0.0398
γ

leverage

Additional response to negative shocks

0.4896
λ₁

tau intercept

Baseline long-term coefficient

3.0260
λ₂

forecast adj.

Forecast performance sensitivity

0.1184
λ₃

tau persistence

Long-term factor persistence

0.8687

Persistence:

0.482

Half-life:

1 days