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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 Monday, September 21st, 2026

1 Day

5,121.94

increased by 359.78

1 Week

4,731.50

decreased by 30.66

1 Month

3,988.34

decreased by 773.82

Analysis last updated: Friday, September 18, 2026 at 11:06 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

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 Sep 18, 2026

Model Insight

Estimated persistence of 1.000 is at or above 1 (non-stationary): illiquidity shocks do not decay and the long-run level is undefined, so long-horizon forecasts should be treated with caution.

Asymmetry: Illiquidity rises 46% more after negative returns

μ

ILLIQ-AMEM Model

Tap to view equation

High persistence: persistence 1.000 ≥ 1, shocks do not decayAsymmetry: Illiquidity rises 46% more after negative returns
ParamValuet-stat
ωconst5.0000
0.73
αARCH0.0595
8.63***
βGARCH0.9270
201.29***
γleverage0.0271
2.50**

1.000

Persistence

-

Half-life
μ

ILLIQ-AMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

5.0000
0.73
α

ARCH

Response to squared shocks

0.0595
8.63***
β

GARCH

Volatility persistence

0.9270
201.29***
γ

leverage

Additional response to negative shocks

0.0271
2.50**

Persistence:

1.000

Half-life:

-