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SPIC Green Energy Co Ltd Spline ILLIQ Liquidity Analysis

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

Illiquidity prediction for Friday, September 18th, 2026

1 Day

69.14

increased by 12.67

1 Week

54.02

decreased by 2.45

1 Month

62.97

increased by 6.50

Analysis last updated: Friday, September 18, 2026 at 06:34 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of SPIC Green Energy Co Ltd ILLIQ-SMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Sep 26, 2002 to Sep 14, 2026

Model Insight

With persistence 1.000, illiquidity shocks have a half-life of 8060 trading days (~32.0 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 1.000, shock half-life ~8060 days
ParamValuet-stat
ωconst1.0703
4.35***
αARCH0.2697
2.90***
βGARCH0.7302
7.83***
γi Spline Coefficients
K=10
γ1-0.6436
-1.25
γ23.1523
4.03***
γ3-6.6833
-4.20***
γ47.6915
2.62***
γ5-5.0205
-2.02**
γ62.0016
2.39**
γ7-0.8115
-2.92***
γ80.2689
0.69
γ90.3098
0.60
γ10-0.5213
-0.91

1.000

Persistence

8060d

Half-life
μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.0703
4.35***
α

ARCH

Response to squared shocks

0.2697
2.90***
β

GARCH

Volatility persistence

0.7302
7.83***
γi Spline Coefficients
K=10
γ1-0.6436
-1.25
γ23.1523
4.03***
γ3-6.6833
-4.20***
γ47.6915
2.62***
γ5-5.0205
-2.02**
γ62.0016
2.39**
γ7-0.8115
-2.92***
γ80.2689
0.69
γ90.3098
0.60
γ10-0.5213
-0.91

Persistence:

1.000

Half-life:

8060 days