Marine Petroleum Trust Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Friday, October 30th, 2026
1 Day
1,833,100.00
decreased by 286,864.00
1 Week
2,044,971.40
decreased by 74,992.60
1 Month
2,351,021.95
increased by 231,057.95
Analysis last updated: Thursday, October 29, 2026 at 10:20 PM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Aug 28, 1995 to Oct 23, 2026Model Insight
This model fits a time-varying baseline (a spline), so illiquidity mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 24 trading days.
μ
ILLIQ-SMEM Model
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Time-varying baseline: illiquidity reverts to a slowly-shifting spline trend
| Param | Value | t-stat |
|---|---|---|
| ωconst | 2.3899 | 4.11*** |
| αARCH | 0.1207 | 10.45*** |
| βGARCH | 0.8511 | 66.38*** |
Spline Coefficients
K=9
| γ1 | -0.2347 | -2.62*** |
| γ2 | 0.3139 | 2.25** |
| γ3 | 0.0182 | 0.17 |
| γ4 | -0.2280 | -2.52** |
| γ5 | 0.2720 | 3.50*** |
| γ6 | -0.1415 | -1.63 |
| γ7 | -0.3014 | -3.28*** |
| γ8 | 0.6923 | 9.13*** |
| γ9 | -0.7937 | -6.77*** |
0.972
Persistence24d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 2.3899 | 4.11*** |
α ARCH Response to squared shocks | 0.1207 | 10.45*** |
β GARCH Volatility persistence | 0.8511 | 66.38*** |
Spline Coefficients
K=9
| γ1 | -0.2347 | -2.62*** |
| γ2 | 0.3139 | 2.25** |
| γ3 | 0.0182 | 0.17 |
| γ4 | -0.2280 | -2.52** |
| γ5 | 0.2720 | 3.50*** |
| γ6 | -0.1415 | -1.63 |
| γ7 | -0.3014 | -3.28*** |
| γ8 | 0.6923 | 9.13*** |
| γ9 | -0.7937 | -6.77*** |
Persistence:
0.972
Half-life:
24 days
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