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Kier Group PLC ILLIQ-MFMEM Liquidity Analysis

Illiquidity prediction for Wednesday, September 23rd, 2026

1 Day

4,463.30

decreased by 245.37

1 Week

5,132.49

increased by 423.82

1 Month

5,401.56

increased by 692.89

Analysis last updated: Wednesday, September 23, 2026 at 08:11 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

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10Y ·

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graph of Kier Group PLC ILLIQ-MFMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Dec 11, 1996 to Sep 18, 2026

Model Insight

With persistence 0.997, illiquidity shocks have a half-life of 198 trading days (~0.8 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. This multi-frequency model splits illiquidity into a fast short-run component and a slow-moving long-run level that drifts over the sample rather than a constant baseline.

Asymmetry: Illiquidity rises 154% more after negative returns

μ

ILLIQ-MFMEM Model

Tap to view equation

High persistence: persistence 0.997, shock half-life ~198 daysAsymmetry: Illiquidity rises 154% more after negative returns
ParamValuet-stat
mwindow56
αARCH0.0894
13.63***
βGARCH0.8384
107.12***
γleverage0.1373
12.95***
λ₁tau intercept10.0000
6.55***
λ₂forecast adj.1.0000
63.20***
λ₃tau persistence0.0000
0.21

0.997

Persistence

198d

Half-life
μ

ILLIQ-MFMEM Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

56
α

ARCH

Response to squared shocks

0.0894
13.63***
β

GARCH

Volatility persistence

0.8384
107.12***
γ

leverage

Additional response to negative shocks

0.1373
12.95***
λ₁

tau intercept

Baseline long-term coefficient

10.0000
6.55***
λ₂

forecast adj.

Forecast performance sensitivity

1.0000
63.20***
λ₃

tau persistence

Long-term factor persistence

0.0000
0.21

Persistence:

0.997

Half-life:

198 days