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Apartment Investment & Management Co Asymmetric ILLIQ Liquidity Analysis

High-persistence model: shocks decay very slowly, so the theoretical long-run value may not be practically meaningful

Illiquidity prediction for Wednesday, August 12th, 2026

1 Day

3,779.81

increased by 213.06

1 Week

3,642.54

increased by 75.79

1 Month

3,299.13

decreased by 267.62

Analysis last updated: Tuesday, August 11, 2026 at 10:13 PM UTC

Date Range:

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to

6M ·

1Y ·

2Y ·

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10Y ·

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graph of Apartment Investment & Management Co ILLIQ-AMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Jul 22, 1994 to Aug 7, 2026

Model Insight

With persistence 1.000, illiquidity shocks have a half-life of 1386294 trading days (~5501.2 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Asymmetry: Illiquidity rises 45% more after negative returns

μ

ILLIQ-AMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

5.0000
2.93***
α

ARCH

Response to squared shocks

0.0595
34.42***
β

GARCH

Volatility persistence

0.9270
803.96***
γ

leverage

Additional response to negative shocks

0.0270
9.92***

Persistence:

1.000

Half-life:

1386294 days