Skip to main content
V-Lab
V-Lab

Arch Meter Corporation ILLIQ-MFMEM Liquidity Analysis

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

Illiquidity prediction for Thursday, October 1st, 2026

1 Day

4,216.46

increased by 786.26

1 Week

3,586.90

increased by 156.70

1 Month

4,967.89

increased by 1,537.69

Analysis last updated: Thursday, October 1, 2026 at 10:02 PM UTC

Press Delete or Backspace to remove this series.
Date Range:

from

09/30/2024

to

09/30/2026

6M ·

1Y ·

2Y ·

All

graph of Arch Meter Corporation ILLIQ-MFMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Nov 4, 2022 to Sep 24, 2026

Model Insight

With persistence 1.000, illiquidity shocks have a half-life of 7453 trading days (~29.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. 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.

Asymmetry: Illiquidity rises 75% more after negative returns

μ

ILLIQ-MFMEM Model

Tap to view equation

High persistence: persistence 1.000, shock half-life ~7453 daysAsymmetry: Illiquidity rises 75% more after negative returns
ParamValuet-stat
mwindow21
αARCH0.2175
13.35***
βGARCH0.7007
55.99***
γleverage0.1634
8.26***
λ₁tau intercept1.8598
0.02
λ₂forecast adj.0.1658
3.21***
λ₃tau persistence0.8342
16.12***

1.000

Persistence

7453d

Half-life
μ

ILLIQ-MFMEM Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

21
α

ARCH

Response to squared shocks

0.2175
13.35***
β

GARCH

Volatility persistence

0.7007
55.99***
γ

leverage

Additional response to negative shocks

0.1634
8.26***
λ₁

tau intercept

Baseline long-term coefficient

1.8598
0.02
λ₂

forecast adj.

Forecast performance sensitivity

0.1658
3.21***
λ₃

tau persistence

Long-term factor persistence

0.8342
16.12***

Persistence:

1.000

Half-life:

7453 days