V-Lab
Boston Scientific Corp Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Monday, August 31st, 2026
1 Day
21.59
decreased by 1.37
1 Week
21.85
decreased by 1.11
1 Month
19.87
decreased by 3.09
Analysis last updated: Friday, August 28, 2026 at 10:22 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
May 20, 1992 to Aug 28, 2026Model Insight
With persistence 0.996, illiquidity shocks have a half-life of 157 trading days (~0.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
μ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.1306 | 5.78*** |
α ARCH Response to squared shocks | 0.0746 | 15.02*** |
β GARCH Volatility persistence | 0.9210 | 175.04*** |
Spline Coefficients
K=4
| γ1 | -0.0182 | -1.91* |
| γ2 | 0.0381 | 2.67*** |
| γ3 | -0.0342 | -2.89*** |
| γ4 | 0.0215 | 1.24 |
Persistence:
0.996
Half-life:
157 days
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