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V-Lab
V-Lab

HP Inc MEM Volatility Analysis

Volatility prediction for Tuesday, September 8th, 2026

1 Day

51.93%

decreased by 2.87%

1 Week

51.47%

decreased by 3.33%

1 Month

49.86%

decreased by 4.94%

Analysis last updated: Friday, September 4, 2026 at 10:55 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of HP Inc MEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Sep 4, 2026

Model Insight

Volatility shocks decay with a half-life of 28 trading days, meaning a shock loses half its impact after approximately 28 days.

μ

MEM Model

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Shock decay: Shocks decay with a 28-day half-life
ParamValuet-stat
ωconst0.1648
2.87***
αARCH0.1854
11.13***
βGARCH0.7901
66.01***

0.975

Persistence

28d

Half-life
μ

MEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.1648
2.87***
α

ARCH

Response to squared shocks

0.1854
11.13***
β

GARCH

Volatility persistence

0.7901
66.01***

Persistence:

0.975

Half-life:

28 days