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Iba - Ion Beam Applications 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 Monday, August 10th, 2026

1 Day

65,610.35

increased by 21,166.38

1 Week

44,322.61

decreased by 121.36

1 Month

40,445.91

decreased by 3,998.06

Analysis last updated: Saturday, August 8, 2026 at 06:16 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Iba - Ion Beam Applications ILLIQ-SMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Jun 24, 1998 to Aug 7, 2026

Model Insight

With persistence 1.000, illiquidity shocks have a half-life of 138629 trading days (~550.1 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.9286
6.36***
α

ARCH

Response to squared shocks

0.1113
0.34
β

GARCH

Volatility persistence

0.8887
2.72***
γi Spline Coefficients
K=1
γ1-0.0032
-0.02

Persistence:

1.000

Half-life:

138629 days