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Boston Scientific Corp Asymmetric ILLIQ Liquidity Analysis

Illiquidity prediction for Monday, September 21st, 2026

1 Day

23.09

decreased by 1.20

1 Week

25.05

increased by 0.76

1 Month

23.70

decreased by 0.59

Analysis last updated: Friday, September 18, 2026 at 11:14 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Boston Scientific Corp ILLIQ-AMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

May 20, 1992 to Sep 18, 2026

Model Insight

With persistence 0.999, illiquidity shocks have a half-life of 768 trading days (~3.0 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Asymmetry: Illiquidity rises 88% more after negative returns

μ

ILLIQ-AMEM Model

Tap to view equation

High persistence: persistence 0.999, shock half-life ~768 daysAsymmetry: Illiquidity rises 88% more after negative returns
ParamValuet-stat
ωconst0.1154
2.27**
αARCH0.0466
7.00***
βGARCH0.9320
216.79***
γleverage0.0410
3.91***

0.999

Persistence

768d

Half-life
μ

ILLIQ-AMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.1154
2.27**
α

ARCH

Response to squared shocks

0.0466
7.00***
β

GARCH

Volatility persistence

0.9320
216.79***
γ

leverage

Additional response to negative shocks

0.0410
3.91***

Persistence:

0.999

Half-life:

768 days