Pacific Coast Oil Trust 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 Friday, October 30th, 2026
1 Day
808,787,800.00
increased by 674,069,400.00
1 Week
251,970,016.00
increased by 117,251,616.00
1 Month
113,355,361.88
decreased by 21,363,038.12
Analysis last updated: Friday, October 30, 2026 at 09:10 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
May 3, 2012 to Oct 23, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 11363 trading days (~45.1 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 ~11363 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.3325 | 2.03** |
| αARCH | 0.2456 | 0.15 |
| βGARCH | 0.7544 | 0.45 |
Spline Coefficients
K=8
| γ1 | 0.3820 | 0.07 |
| γ2 | 0.2647 | 0.04 |
| γ3 | -1.6004 | -0.44 |
| γ4 | 1.0671 | 0.28 |
| γ5 | 1.5675 | 0.33 |
| γ6 | -3.6707 | -0.85 |
| γ7 | 3.5527 | 1.22 |
| γ8 | -5.2728 | -0.84 |
1.000
Persistence11363d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.3325 | 2.03** |
α ARCH Response to squared shocks | 0.2456 | 0.15 |
β GARCH Volatility persistence | 0.7544 | 0.45 |
Spline Coefficients
K=8
| γ1 | 0.3820 | 0.07 |
| γ2 | 0.2647 | 0.04 |
| γ3 | -1.6004 | -0.44 |
| γ4 | 1.0671 | 0.28 |
| γ5 | 1.5675 | 0.33 |
| γ6 | -3.6707 | -0.85 |
| γ7 | 3.5527 | 1.22 |
| γ8 | -5.2728 | -0.84 |
Persistence:
1.000
Half-life:
11363 days
Other Pacific Coast Oil Trust Analyses
Other Spline ILLIQ Analyses on Units