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Shanghai Hi-Tech Control System Co Ltd Asymmetric ILLIQ Liquidity Analysis

Illiquidity prediction for Monday, August 17th, 2026

1 Day

159.09

decreased by 30.18

1 Week

153.43

decreased by 35.84

1 Month

262.42

increased by 73.15

Analysis last updated: Saturday, August 15, 2026 at 07:07 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

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graph of Shanghai Hi-Tech Control System Co Ltd ILLIQ-AMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Nov 16, 2007 to Aug 14, 2026

Model Insight

With persistence 0.998, illiquidity shocks have a half-life of 305 trading days (~1.2 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Asymmetry: Illiquidity rises 185% more after negative returns

μ

ILLIQ-AMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

3.8248
11.36***
α

ARCH

Response to squared shocks

0.1119
26.82***
β

GARCH

Volatility persistence

0.7824
432.74***
γ

leverage

Additional response to negative shocks

0.2070
29.23***

Persistence:

0.998

Half-life:

305 days