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

Liquidity prediction for Monday, July 20th, 2026

1 Day

427.75

increased by 99.36

1 Week

427.32

increased by 98.93

1 Month

424.37

increased by 95.98

Analysis last updated: Saturday, July 18, 2026 at 10:03 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 liquidity

Liquidity Forecast

How liquidity evolves over time

Parameter Estimates

Nov 16, 2007 to Jul 17, 2026

Model Insight

With persistence 0.998, illiquidity shocks have a half-life of 337 trading days (~1.3 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

3.8289
11.36***
α

ARCH

Response to squared shocks

0.1128
26.91***
β

GARCH

Volatility persistence

0.7818
430.53***
γ

leverage

Additional response to negative shocks

0.2067
29.11***

Persistence:

0.998

Half-life:

337 days