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American Tower Corp ILLIQ-MFMEM Liquidity Analysis

Illiquidity prediction for Monday, September 21st, 2026

1 Day

27.03

decreased by 0.91

1 Week

29.20

increased by 1.26

1 Month

30.19

increased by 2.25

Analysis last updated: Friday, September 18, 2026 at 11:07 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of American Tower Corp ILLIQ-MFMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Feb 27, 1998 to Sep 18, 2026

Model Insight

Illiquidity shocks decay with a half-life of 60 trading days, meaning a shock loses half its impact after approximately 60 days. This multi-frequency model splits illiquidity into a fast short-run component and a slow-moving long-run level that drifts over the sample rather than a constant baseline.

μ

ILLIQ-MFMEM Model

Tap to view equation

Shock decay: Shocks decay with a 60-day half-life
ParamValuet-stat
mwindow121
αARCH0.0737
16.51***
βGARCH0.9182
239.18***
γleverage-0.0067
-0.71
λ₁tau intercept0.0333
4.00***
λ₂forecast adj.0.0000
0.00
λ₃tau persistence0.9988
215.11***

0.989

Persistence

60d

Half-life
μ

ILLIQ-MFMEM Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

121
α

ARCH

Response to squared shocks

0.0737
16.51***
β

GARCH

Volatility persistence

0.9182
239.18***
γ

leverage

Additional response to negative shocks

-0.0067
-0.71
λ₁

tau intercept

Baseline long-term coefficient

0.0333
4.00***
λ₂

forecast adj.

Forecast performance sensitivity

0.0000
0.00
λ₃

tau persistence

Long-term factor persistence

0.9988
215.11***

Persistence:

0.989

Half-life:

60 days