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Jinneng Holding Shanxi Electric Power 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 Thursday, September 24th, 2026

1 Day

54.46

increased by 15.33

1 Week

43.23

increased by 4.10

1 Month

47.35

increased by 8.22

Analysis last updated: Thursday, September 24, 2026 at 06:20 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Jinneng Holding Shanxi Electric Power Co Ltd ILLIQ-SMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Jun 10, 1997 to Sep 18, 2026

Model Insight

With persistence 1.000, illiquidity shocks have a half-life of 20386 trading days (~80.9 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 ~20386 days
ParamValuet-stat
ωconst1.2751
0.24
αARCH0.2175
0.24
βGARCH0.7825
0.88
∑γi Spline Coefficients
K=6
γ1-0.5210
-5.10***
γ21.3026
11.30***
γ3-1.5373
-16.30***
γ41.1414
6.39***
γ5-0.5526
-7.85***
γ60.2863
0.74

1.000

Persistence

20386d

Half-life
μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.2751
0.24
α

ARCH

Response to squared shocks

0.2175
0.24
β

GARCH

Volatility persistence

0.7825
0.88
∑γi Spline Coefficients
K=6
γ1-0.5210
-5.10***
γ21.3026
11.30***
γ3-1.5373
-16.30***
γ41.1414
6.39***
γ5-0.5526
-7.85***
γ60.2863
0.74

Persistence:

1.000

Half-life:

20386 days