Imdex Ltd Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Monday, November 9th, 2026
1 Day
4,688.02
increased by 1,148.79
1 Week
3,623.04
increased by 83.81
1 Month
3,789.95
increased by 250.72
Analysis last updated: Saturday, November 7, 2026 at 07:00 PM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jan 2, 1996 to Nov 6, 2026Model Insight
With persistence 0.999, illiquidity shocks have a half-life of 991 trading days (~3.9 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
μ
ILLIQ-SMEM Model
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High persistence: persistence 0.999, shock half-life ~991 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.6577 | 4.58*** |
| αARCH | 0.0586 | 4.93*** |
| βGARCH | 0.9407 | 76.77*** |
Spline Coefficients
K=7
| γ1 | -0.5618 | -2.12** |
| γ2 | 0.8740 | 2.36** |
| γ3 | -1.1755 | -2.74*** |
| γ4 | 2.6683 | 2.60*** |
| γ5 | -3.4039 | -2.83*** |
| γ6 | 2.3554 | 2.97*** |
| γ7 | -0.9810 | -2.43** |
0.999
Persistence991d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.6577 | 4.58*** |
α ARCH Response to squared shocks | 0.0586 | 4.93*** |
β GARCH Volatility persistence | 0.9407 | 76.77*** |
Spline Coefficients
K=7
| γ1 | -0.5618 | -2.12** |
| γ2 | 0.8740 | 2.36** |
| γ3 | -1.1755 | -2.74*** |
| γ4 | 2.6683 | 2.60*** |
| γ5 | -3.4039 | -2.83*** |
| γ6 | 2.3554 | 2.97*** |
| γ7 | -0.9810 | -2.43** |
Persistence:
0.999
Half-life:
991 days
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