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Pngs Reva Diamond Jewellery Ltd Asy. Power MEM Volatility Analysis

Volatility prediction for Friday, October 16th, 2026

1 Day

80.05%

decreased by 4.42%

1 Week

74.44%

decreased by 10.03%

1 Month

69.26%

decreased by 15.21%

Analysis last updated: Friday, October 16, 2026 at 07:37 PM UTC

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Date Range:

from

10/15/2024

to

10/15/2026

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 Oct 9, 2026

Model Insight

This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 48% 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 = 0.54 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

Inverse leverage: Positive returns increase volatility 48% more than negative returnsδ = 0.54 · sub-quadratic power
ParamValuet-stat
ωconst0.6233
0.67
αARCH0.2566
3.17***
βGARCH0.5071
2.63***
γleverage-0.3509
-2.26**
δpower0.5389
0.64

0.713

Persistence

2d

Half-life
μ

APMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.6233
0.67
α

ARCH

Response to squared shocks

0.2566
3.17***
β

GARCH

Volatility persistence

0.5071
2.63***
γ

leverage

Additional response to negative shocks

-0.3509
-2.26**
δ

power

Transformation power

0.5389
0.64

Persistence:

0.713

Half-life:

2 days