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Shanghai 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, August 27th, 2026

1 Day

25.13

decreased by 5.39

1 Week

25.36

decreased by 5.16

1 Month

26.84

decreased by 3.68

Analysis last updated: Thursday, August 27, 2026 at 06:11 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Shanghai Electric Power Co Ltd ILLIQ-SMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Oct 29, 2003 to Aug 21, 2026

Model Insight

With persistence 1.000, illiquidity shocks have a half-life of 99021 trading days (~392.9 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.4290
0.01
α

ARCH

Response to squared shocks

0.2479
0.00
β

GARCH

Volatility persistence

0.7521
0.00
γi Spline Coefficients
K=5
γ1-0.1164
0.00
γ2-0.3449
0.00
γ30.8692
0.05
γ4-0.6398
-0.15
γ50.4496
0.03

Persistence:

1.000

Half-life:

99021 days