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International Business Machines Corp Spline ILLIQ Liquidity Analysis

Illiquidity prediction for Monday, September 14th, 2026

1 Day

13.49

increased by 1.02

1 Week

12.44

decreased by 0.03

1 Month

11.88

decreased by 0.59

Analysis last updated: Saturday, September 12, 2026 at 12:12 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of International Business Machines Corp ILLIQ-SMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Jan 2, 1990 to Sep 11, 2026

Model Insight

With persistence 0.998, illiquidity shocks have a half-life of 380 trading days (~1.5 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 0.998, shock half-life ~380 days
ParamValuet-stat
ωconst1.0579
9.59***
αARCH0.0500
13.79***
βGARCH0.9481
255.08***
γi Spline Coefficients
K=1
γ1-0.0018
-2.25**

0.998

Persistence

380d

Half-life
μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.0579
9.59***
α

ARCH

Response to squared shocks

0.0500
13.79***
β

GARCH

Volatility persistence

0.9481
255.08***
γi Spline Coefficients
K=1
γ1-0.0018
-2.25**

Persistence:

0.998

Half-life:

380 days