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Earth Tech Environment Plc 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 Friday, August 28th, 2026

1 Day

2,695.42

increased by 446.45

1 Week

2,835.47

increased by 586.50

1 Month

5,709.78

increased by 3,460.81

Analysis last updated: Friday, August 28, 2026 at 08:32 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

All

graph of Earth Tech Environment Plc ILLIQ-AMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Aug 18, 2020 to Aug 21, 2026

Model Insight

Estimated persistence of 1.000 is at or above 1 (non-stationary): illiquidity shocks do not decay and the long-run level is undefined, so long-horizon forecasts should be treated with caution.

Asymmetry: Illiquidity rises 105% more after negative returns

μ

ILLIQ-AMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

5.0000
5.47***
α

ARCH

Response to squared shocks

0.1081
17.70***
β

GARCH

Volatility persistence

0.8349
230.26***
γ

leverage

Additional response to negative shocks

0.1140
10.88***

Persistence:

1.000

Half-life:

-