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V-Lab

Pngs Reva Diamond Jewellery Ltd Asy. Power MEM Volatility Analysis

Volatility prediction for Wednesday, August 5th, 2026

1 Day

119.18%

increased by 33.48%

1 Week

111.29%

increased by 25.59%

1 Month

91.73%

increased by 6.03%

Analysis last updated: Wednesday, August 5, 2026 at 07:08 PM UTC

Date Range:

from

to

6M ·

All

graph of Pngs Reva Diamond Jewellery Ltd APMEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Mar 4, 2026 to Jul 31, 2026

Model Insight

This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 225% more than negative returns. Volatility rises more after gains than after losses, the reverse of the usual leverage effect and uncommon among risky assets. The volatility power δ = 1.07 sits below 2, so large shocks influence volatility less than quadratically, a more outlier-robust response than standard GARCH.

μ

APMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.3080
1.81*
α

ARCH

Response to squared shocks

0.1315
6.15***
β

GARCH

Volatility persistence

0.8192
25.26***
γ

leverage

Additional response to negative shocks

-0.5001
-6.73***
δ

power

Transformation power

1.0727
3.08***

Persistence:

0.926

Half-life:

9 days