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V-Lab

Vinacomin Halam Coal Jsc Spline ILLIQ Liquidity Analysis

Liquidity prediction for Monday, July 20th, 2026

1 Day

9,553.96

decreased by 936.03

1 Week

6,203.91

decreased by 4,286.08

1 Month

2,502.68

decreased by 7,987.31

Analysis last updated: Sunday, July 19, 2026 at 04:11 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Vinacomin Halam Coal Jsc ILLIQ-SMEM

News Impact Curve

How returns affect tomorrow's liquidity

Liquidity Forecast

How liquidity evolves over time

Parameter Estimates

Mar 5, 2009 to Jul 17, 2026

Model Insight

With persistence 0.996, illiquidity shocks have a half-life of 167 trading days (~0.7 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.2407
4.06***
α

ARCH

Response to squared shocks

0.1149
7.41***
β

GARCH

Volatility persistence

0.8809
48.48***
γi Spline Coefficients
K=8
γ11.1345
0.90
γ2-2.2342
-1.35
γ31.8522
2.04**
γ4-1.1032
-1.14
γ5-1.2557
-1.15
γ64.1900
3.81***
γ7-4.4092
-4.16***
γ84.3705
2.38**

Persistence:

0.996

Half-life:

167 days