Montanaro UK Smaller Companies Investment Trust PLC Spline 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, October 26th, 2026
1 Day
68,271.37
decreased by 3,498.39
1 Week
73,752.79
increased by 1,983.03
1 Month
85,346.50
increased by 13,576.74
Analysis last updated: Sunday, October 25, 2026 at 08:39 AM UTC
Press Delete or Backspace to remove this series.
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jan 2, 2007 to Oct 23, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 173286 trading days (~687.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
μ
ILLIQ-SMEM Model
Tap to view equation
High persistence: persistence 1.000, shock half-life ~173286 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.9953 | |
| αARCH | 0.1105 | |
| βGARCH | 0.8895 |
Spline Coefficients
K=10
| γ1 | 0.6640 | |
| γ2 | -0.5388 | |
| γ3 | -3.3026 | |
| γ4 | 8.1748 | |
| γ5 | -9.3225 | |
| γ6 | 6.9331 | |
| γ7 | -3.7437 | |
| γ8 | 1.4894 | |
| γ9 | -0.5074 | |
| γ10 | 0.6924 |
1.000
Persistence173286d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.9953 | |
α ARCH Response to squared shocks | 0.1105 | |
β GARCH Volatility persistence | 0.8895 |
Spline Coefficients
K=10
| γ1 | 0.6640 | |
| γ2 | -0.5388 | |
| γ3 | -3.3026 | |
| γ4 | 8.1748 | |
| γ5 | -9.3225 | |
| γ6 | 6.9331 | |
| γ7 | -3.7437 | |
| γ8 | 1.4894 | |
| γ9 | -0.5074 | |
| γ10 | 0.6924 |
Persistence:
1.000
Half-life:
173286 days
Other Montanaro UK Smaller Companies Investment Trust PLC Analyses
Other Spline ILLIQ Analyses on Closed-end Funds