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Beijing Sifang Automation 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 13th, 2026

1 Day

24.93

decreased by 0.65

1 Week

30.42

increased by 4.84

1 Month

43.93

increased by 18.35

Analysis last updated: Thursday, August 13, 2026 at 06:42 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Beijing Sifang Automation Co Ltd ILLIQ-SMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Jan 3, 2011 to Aug 7, 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

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.8953
2.89***
α

ARCH

Response to squared shocks

0.2541
14.43***
β

GARCH

Volatility persistence

0.7459
42.34***
γi Spline Coefficients
K=1
γ1-0.0197
-1.98**

Persistence:

1.000

Half-life:

20386 days