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Howmet Aerospace Inc Asymmetric ILLIQ Liquidity Analysis

Illiquidity prediction for Monday, November 2nd, 2026

1 Day

33.23

increased by 2.89

1 Week

31.40

increased by 1.06

1 Month

28.74

decreased by 1.60

Analysis last updated: Friday, October 30, 2026 at 10:16 PM UTC

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Date Range:

from

10/30/2024

to

10/30/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Howmet Aerospace Inc ILLIQ-AMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Jan 2, 1990 to Oct 30, 2026

Model Insight

With persistence 0.999, illiquidity shocks have a half-life of 1339 trading days (~5.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Asymmetry: Illiquidity rises 160% more after negative returns

μ

ILLIQ-AMEM Model

Tap to view equation

High persistence: persistence 0.999, shock half-life ~1339 daysAsymmetry: Illiquidity rises 160% more after negative returns
ParamValuet-stat
ωconst0.2157
1.83*
αARCH0.0320
6.32***
βGARCH0.9418
254.60***
γleverage0.0514
5.91***

0.999

Persistence

1339d

Half-life
μ

ILLIQ-AMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.2157
1.83*
α

ARCH

Response to squared shocks

0.0320
6.32***
β

GARCH

Volatility persistence

0.9418
254.60***
γ

leverage

Additional response to negative shocks

0.0514
5.91***

Persistence:

0.999

Half-life:

1339 days