Skip to main content
V-Lab
V-Lab

National Polymer Industries 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 Sunday, October 25th, 2026

1 Day

15,123.91

increased by 9,881.71

1 Week

15,123.91

increased by 9,881.71

1 Month

4,909.26

decreased by 332.94

Analysis last updated: Tuesday, October 20, 2026 at 05:58 PM UTC

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

from

10/19/2024

to

10/19/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of National Polymer Industries ILLIQ-AMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Oct 12, 2009 to Oct 19, 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 responds almost entirely to negative returns

μ

ILLIQ-AMEM Model

Tap to view equation

High persistence: persistence 1.000, shock half-life ~1386294 daysAsymmetry: illiquidity responds almost entirely to negative returns
ParamValuet-stat
ωconst5.0000
0.73
αARCH0.0002
0.05
βGARCH0.8147
19.81***
γleverage0.3702
2.61***

1.000

Persistence

1386294d

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

0.0002
0.05
β

GARCH

Volatility persistence

0.8147
19.81***
γ

leverage

Additional response to negative shocks

0.3702
2.61***

Persistence:

1.000

Half-life:

1386294 days