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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

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Date Range:

from

10/29/2024

to

10/29/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Pacific Coast Oil Trust ILLIQ-SMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

May 3, 2012 to Oct 23, 2026

Model 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
ParamValuet-stat
ωconst0.3325
2.03**
αARCH0.2456
0.15
βGARCH0.7544
0.45
∑γi Spline Coefficients
K=8
γ10.3820
0.07
γ20.2647
0.04
γ3-1.6004
-0.44
γ41.0671
0.28
γ51.5675
0.33
γ6-3.6707
-0.85
γ73.5527
1.22
γ8-5.2728
-0.84

1.000

Persistence

11363d

Half-life
μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-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
∑γi Spline Coefficients
K=8
γ10.3820
0.07
γ20.2647
0.04
γ3-1.6004
-0.44
γ41.0671
0.28
γ51.5675
0.33
γ6-3.6707
-0.85
γ73.5527
1.22
γ8-5.2728
-0.84

Persistence:

1.000

Half-life:

11363 days