V-Lab
Kier Group PLC ILLIQ-MFMEM Liquidity Analysis
Illiquidity prediction for Wednesday, September 23rd, 2026
1 Day
4,463.30
1 Week
5,132.49
1 Month
5,401.56
Analysis last updated: Wednesday, September 23, 2026 at 08:11 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Dec 11, 1996 to Sep 18, 2026Model 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
ILLIQ-MFMEM Model
Tap to view equation
| Param | Value | t-stat |
|---|---|---|
| mwindow | 56 | |
| αARCH | 0.0894 | 13.63*** |
| βGARCH | 0.8384 | 107.12*** |
| γleverage | 0.1373 | 12.95*** |
| λ₁tau intercept | 10.0000 | 6.55*** |
| λ₂forecast adj. | 1.0000 | 63.20*** |
| λ₃tau persistence | 0.0000 | 0.21 |
0.997
Persistence198d
Half-lifeILLIQ-MFMEM Model
Tap to view equation
| Parameter | Value | t-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
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