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V-Lab

HP Inc Asy. Power MEM Volatility Analysis

Volatility prediction for Thursday, July 16th, 2026

1 Day

51.36%

increased by 7.55%

1 Week

46.06%

increased by 2.25%

1 Month

34.34%

decreased by 9.47%

Analysis last updated: Wednesday, July 15, 2026 at 10:03 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

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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 Jul 10, 2026

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

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0662
22.30***
α

ARCH

Response to squared shocks

0.2015
67.83***
β

GARCH

Volatility persistence

0.7685
218.82***
γ

leverage

Additional response to negative shocks

0.1554
23.47***
δ

power

Transformation power

0.5000
12.24***

Persistence:

0.934

Half-life:

10 days