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Hep Tech Co. Ltd. Asymmetric 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, July 23rd, 2026

1 Day

11,302.89

increased by 8,866.18

1 Week

4,546.43

increased by 2,109.72

1 Month

5,214.35

increased by 2,777.64

Analysis last updated: Thursday, July 23, 2026 at 08:43 PM UTC

Date Range:

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to

6M ·

1Y ·

2Y ·

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10Y ·

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graph of Hep Tech Co. Ltd. ILLIQ-AMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

May 5, 2008 to Jul 17, 2026

Model Insight

With persistence 1.000, illiquidity shocks have a half-life of 1386294 trading days (~5501.2 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Asymmetry: illiquidity responds almost entirely to negative returns

μ

ILLIQ-AMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

5.0000
0.23
α

ARCH

Response to squared shocks

0.0519
3.80***
β

GARCH

Volatility persistence

0.8351
90.35***
γ

leverage

Additional response to negative shocks

0.2260
2.60***

Persistence:

1.000

Half-life:

1386294 days