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All About Inc Spline ILLIQ Liquidity Analysis

Illiquidity prediction for Monday, September 28th, 2026

1 Day

2,315.92

decreased by 325.35

1 Week

2,478.60

decreased by 162.67

1 Month

2,860.91

increased by 219.64

Analysis last updated: Saturday, September 26, 2026 at 08:54 PM UTC

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graph of All About Inc ILLIQ-SMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Sep 13, 2005 to Sep 25, 2026

Model Insight

With persistence 1.000, illiquidity shocks have a half-life of 4780 trading days (~19.0 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 ~4780 days
ParamValuet-stat
ωconst0.9887
5.31***
αARCH0.1777
10.48***
βGARCH0.8222
48.45***
∑γi Spline Coefficients
K=3
γ1-0.2525
-13.91***
γ20.3651
12.78***
γ3-0.1342
-3.90***

1.000

Persistence

4780d

Half-life
μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.9887
5.31***
α

ARCH

Response to squared shocks

0.1777
10.48***
β

GARCH

Volatility persistence

0.8222
48.45***
∑γi Spline Coefficients
K=3
γ1-0.2525
-13.91***
γ20.3651
12.78***
γ3-0.1342
-3.90***

Persistence:

1.000

Half-life:

4780 days