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V-Lab

Howmet Aerospace Inc MEM Volatility Analysis

Volatility prediction for Tuesday, September 15th, 2026

1 Day

39.37%

decreased by 1.26%

1 Week

39.27%

decreased by 1.36%

1 Month

38.92%

decreased by 1.71%

Analysis last updated: Monday, September 14, 2026 at 09:49 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

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graph of Howmet Aerospace 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 11, 2026

Model Insight

Volatility shocks decay with a half-life of 27 trading days, meaning a shock loses half its impact after approximately 27 days.

μ

MEM Model

Tap to view equation

Shock decay: Shocks decay with a 27-day half-life
ParamValuet-stat
ωconst0.1399
2.63***
αARCH0.1568
10.74***
βGARCH0.8178
74.63***

0.975

Persistence

27d

Half-life
μ

MEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.1399
2.63***
α

ARCH

Response to squared shocks

0.1568
10.74***
β

GARCH

Volatility persistence

0.8178
74.63***

Persistence:

0.975

Half-life:

27 days