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

Illiquidity prediction for Monday, August 31st, 2026

1 Day

266.98

increased by 15.84

1 Week

328.04

increased by 76.90

1 Month

236.83

decreased by 14.31

Analysis last updated: Saturday, August 29, 2026 at 08:00 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

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 28, 2026

Model Insight

With persistence 0.998, illiquidity shocks have a half-life of 290 trading days (~1.1 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Asymmetry: Illiquidity rises 183% more after negative returns

μ

ILLIQ-AMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

3.9174
2.89***
α

ARCH

Response to squared shocks

0.1122
6.73***
β

GARCH

Volatility persistence

0.7826
108.37***
γ

leverage

Additional response to negative shocks

0.2057
7.27***

Persistence:

0.998

Half-life:

290 days