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V-Lab

HP Inc Asy. Power MEM Volatility Analysis

Volatility prediction for Monday, October 19th, 2026

1 Day

47.57%

increased by 4.64%

1 Week

42.92%

decreased by 0.01%

1 Month

32.47%

decreased by 10.46%

Analysis last updated: Friday, October 16, 2026 at 11:17 PM UTC

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Date Range:

from

10/16/2024

to

10/16/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of HP Inc APMEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Oct 16, 2026
Boundary Parameters

Model Insight

This asset exhibits a modest leverage effect: negative returns increase next-day volatility 17% more than equivalent positive returns. The volatility power δ = 0.50 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

Leverage: Negative returns increase volatility 17% more than positive returnsδ = 0.50 · sub-quadratic power
ParamValuet-stat
ωconst0.0652
5.56***
αARCH0.2009
17.03***
βGARCH0.7699
55.33***
γleverage0.1529
5.80***
δpower0.5000
3.05***

0.935

Persistence

10d

Half-life
μ

APMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0652
5.56***
α

ARCH

Response to squared shocks

0.2009
17.03***
β

GARCH

Volatility persistence

0.7699
55.33***
γ

leverage

Additional response to negative shocks

0.1529
5.80***
δ

power

Transformation power

0.5000
3.05***

Persistence:

0.935

Half-life:

10 days