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Shanghai Bao Pharmaceuticals Co Ltd Asymmetric ILLIQ Liquidity Analysis

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

Illiquidity prediction for Monday, July 27th, 2026

1 Day

1,988.42

increased by 86.38

1 Week

2,168.19

increased by 266.15

1 Month

1,442.94

decreased by 459.10

Analysis last updated: Sunday, July 26, 2026 at 12:35 AM UTC

Date Range:

from

to

6M ·

All

graph of Shanghai Bao Pharmaceuticals Co Ltd ILLIQ-AMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Dec 10, 2025 to Jul 24, 2026

Model Insight

With persistence 1.000, illiquidity shocks have a half-life of 693147 trading days (~2750.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

μ

ILLIQ-AMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

5.0000
0.68
α

ARCH

Response to squared shocks

0.1798
4.77***
β

GARCH

Volatility persistence

0.8180
70.15***
γ

leverage

Additional response to negative shocks

0.0043
0.07

Persistence:

1.000

Half-life:

693147 days