V-Lab
British Land Co PLC/The Asymmetric ILLIQ Liquidity Analysis
Illiquidity prediction for Monday, September 21st, 2026
1 Day
994.95
increased by 0.16
1 Week
1,018.98
increased by 24.19
1 Month
908.15
decreased by 86.64
Analysis last updated: Sunday, September 20, 2026 at 03:38 AM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jan 1, 1990 to Sep 18, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 2625 trading days (~10.4 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
Asymmetry: Illiquidity rises 209% more after negative returns
μ
ILLIQ-AMEM Model
Tap to view equation
High persistence: persistence 1.000, shock half-life ~2625 daysAsymmetry: Illiquidity rises 209% more after negative returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.0675 | 1.14 |
| αARCH | 0.0162 | 2.94*** |
| βGARCH | 0.9666 | 240.68*** |
| γleverage | 0.0339 | 3.66*** |
1.000
Persistence2625d
Half-lifeμ
ILLIQ-AMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.0675 | 1.14 |
α ARCH Response to squared shocks | 0.0162 | 2.94*** |
β GARCH Volatility persistence | 0.9666 | 240.68*** |
γ leverage Additional response to negative shocks | 0.0339 | 3.66*** |
Persistence:
1.000
Half-life:
2625 days
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