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Weichai Heavy Machinery Co Ltd Spline ILLIQ Liquidity Analysis

Illiquidity prediction for Thursday, September 24th, 2026

1 Day

55.46

increased by 10.35

1 Week

49.64

increased by 4.53

1 Month

61.12

increased by 16.01

Analysis last updated: Thursday, September 24, 2026 at 06:19 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Weichai Heavy Machinery Co Ltd ILLIQ-SMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Apr 2, 1998 to Sep 18, 2026

Model Insight

With persistence 0.999, illiquidity shocks have a half-life of 1320 trading days (~5.2 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

μ

ILLIQ-SMEM Model

Tap to view equation

High persistence: persistence 0.999, shock half-life ~1320 days
ParamValuet-stat
ωconst0.8356
4.60***
αARCH0.2818
15.83***
βGARCH0.7177
40.42***
∑γi Spline Coefficients
K=8
γ1-1.1808
-2.30**
γ24.1120
3.55***
γ3-5.5424
-4.12***
γ43.6602
3.41***
γ5-1.2235
-1.97**
γ60.1732
0.66
γ7-0.1020
-0.73
γ80.0959
0.54

0.999

Persistence

1320d

Half-life
μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.8356
4.60***
α

ARCH

Response to squared shocks

0.2818
15.83***
β

GARCH

Volatility persistence

0.7177
40.42***
∑γi Spline Coefficients
K=8
γ1-1.1808
-2.30**
γ24.1120
3.55***
γ3-5.5424
-4.12***
γ43.6602
3.41***
γ5-1.2235
-1.97**
γ60.1732
0.66
γ7-0.1020
-0.73
γ80.0959
0.54

Persistence:

0.999

Half-life:

1320 days