V-Lab
Sierra Cables 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 Monday, September 21st, 2026
1 Day
557.07
1 Week
601.16
1 Month
744.18
Analysis last updated: Sunday, September 20, 2026 at 02:15 AM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jul 13, 2010 to Sep 18, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 1386294 trading days (~5501.2 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
ILLIQ-AMEM Model
Tap to view equation
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.2614 | 0.01 |
| αARCH | 0.0238 | 0.85 |
| βGARCH | 0.9492 | 183.55*** |
| γleverage | 0.0540 | 0.51 |
1.000
Persistence1386294d
Half-lifeILLIQ-AMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.2614 | 0.01 |
α ARCH Response to squared shocks | 0.0238 | 0.85 |
β GARCH Volatility persistence | 0.9492 | 183.55*** |
γ leverage Additional response to negative shocks | 0.0540 | 0.51 |
Persistence:
1.000
Half-life:
1386294 days
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