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

Illiquidity prediction for Monday, August 10th, 2026

1 Day

140.36

decreased by 24.00

1 Week

188.02

increased by 23.66

1 Month

322.41

increased by 158.05

Analysis last updated: Saturday, August 8, 2026 at 07:09 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 7, 2026

Model Insight

With persistence 0.998, illiquidity shocks have a half-life of 309 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

3.8135
11.29***
α

ARCH

Response to squared shocks

0.1119
26.79***
β

GARCH

Volatility persistence

0.7822
431.91***
γ

leverage

Additional response to negative shocks

0.2074
29.26***

Persistence:

0.998

Half-life:

309 days