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Derwent London PLC Asymmetric ILLIQ Liquidity Analysis

Illiquidity prediction for Tuesday, August 11th, 2026

1 Day

1,936.19

increased by 3.84

1 Week

1,917.79

decreased by 14.56

1 Month

1,942.31

increased by 9.96

Analysis last updated: Tuesday, August 11, 2026 at 09:31 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Derwent London PLC ILLIQ-AMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Jun 9, 1998 to Aug 7, 2026

Model Insight

With persistence 0.999, illiquidity shocks have a half-life of 1034 trading days (~4.1 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Asymmetry: Illiquidity rises 123% more after negative returns

μ

ILLIQ-AMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.4293
2.19**
α

ARCH

Response to squared shocks

0.0095
9.13***
β

GARCH

Volatility persistence

0.9840
987.94***
γ

leverage

Additional response to negative shocks

0.0117
6.14***

Persistence:

0.999

Half-life:

1034 days