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V-Lab
V-Lab

Koei Chem Co Ltd Spline ILLIQ Liquidity Analysis

Inactive

Last recorded values (Thursday, July 30th, 2026):

1 Day

1,065.45

1 Week

1,015.06

1 Month

913.68

Analysis last updated: Wednesday, September 2, 2026 at 05:07 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Koei Chem Co Ltd ILLIQ-SMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Nov 3, 1997 to Jul 29, 2026

Model Insight

This model fits a time-varying baseline (a spline), so illiquidity mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 41 trading days.

μ

ILLIQ-SMEM Model

Tap to view equation

Time-varying baseline: illiquidity reverts to a slowly-shifting spline trend
ParamValuet-stat
ωconst0.9316
3.28***
αARCH0.1331
12.45***
βGARCH0.8501
74.92***
γi Spline Coefficients
K=7
γ1-0.6689
-6.97***
γ21.0648
8.26***
γ3-0.6166
-7.99***
γ40.1572
1.91*
γ50.2018
2.54**
γ6-0.0566
-0.75
γ7-0.2668
-2.44**

0.983

Persistence

41d

Half-life
μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.9316
3.28***
α

ARCH

Response to squared shocks

0.1331
12.45***
β

GARCH

Volatility persistence

0.8501
74.92***
γi Spline Coefficients
K=7
γ1-0.6689
-6.97***
γ21.0648
8.26***
γ3-0.6166
-7.99***
γ40.1572
1.91*
γ50.2018
2.54**
γ6-0.0566
-0.75
γ7-0.2668
-2.44**

Persistence:

0.983

Half-life:

41 days