Boston Scientific Corp Asymmetric ILLIQ Liquidity Analysis
Illiquidity prediction for Monday, November 2nd, 2026
1 Day
20.54
increased by 0.32
1 Week
20.74
increased by 0.52
1 Month
19.81
decreased by 0.41
Analysis last updated: Friday, October 30, 2026 at 09:59 PM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
May 20, 1992 to Oct 30, 2026Model Insight
With persistence 0.999, illiquidity shocks have a half-life of 789 trading days (~3.1 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
Asymmetry: Illiquidity rises 87% more after negative returns
μ
ILLIQ-AMEM Model
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High persistence: persistence 0.999, shock half-life ~789 daysAsymmetry: Illiquidity rises 87% more after negative returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.1120 | 2.22** |
| αARCH | 0.0468 | 7.03*** |
| βGARCH | 0.9319 | 217.08*** |
| γleverage | 0.0407 | 3.88*** |
0.999
Persistence789d
Half-lifeμ
ILLIQ-AMEM Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.1120 | 2.22** |
α ARCH Response to squared shocks | 0.0468 | 7.03*** |
β GARCH Volatility persistence | 0.9319 | 217.08*** |
γ leverage Additional response to negative shocks | 0.0407 | 3.88*** |
Persistence:
0.999
Half-life:
789 days
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