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Hep Tech Co. Ltd. Spline 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

6,041.50

increased by 3,275.48

1 Week

3,524.14

increased by 758.12

1 Month

4,269.20

increased by 1,503.18

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

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

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graph of Hep Tech Co. Ltd. ILLIQ-SMEM

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 173286 trading days (~687.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

6.4087
α

ARCH

Response to squared shocks

0.1064
β

GARCH

Volatility persistence

0.8936
γi Spline Coefficients
K=6
γ10.2577
γ2-1.8724
γ32.6489
γ4-0.6393
γ5-0.0675
γ6-1.0823

Persistence:

1.000

Half-life:

173286 days