V-Lab
Abbott Laboratories Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Friday, September 11th, 2026
1 Day
14.79
increased by 0.39
1 Week
14.66
increased by 0.26
1 Month
14.37
decreased by 0.03
Analysis last updated: Thursday, September 10, 2026 at 09:47 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jan 2, 1990 to Sep 4, 2026Model Insight
With persistence 0.999, illiquidity shocks have a half-life of 528 trading days (~2.1 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
μ
ILLIQ-SMEM Model
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High persistence: persistence 0.999, shock half-life ~528 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.0114 | 7.80*** |
| αARCH | 0.0462 | 13.87*** |
| βGARCH | 0.9524 | 284.06*** |
Spline Coefficients
K=1
| γ1 | -0.0013 | -1.36 |
0.999
Persistence528d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.0114 | 7.80*** |
α ARCH Response to squared shocks | 0.0462 | 13.87*** |
β GARCH Volatility persistence | 0.9524 | 284.06*** |
Spline Coefficients
K=1
| γ1 | -0.0013 | -1.36 |
Persistence:
0.999
Half-life:
528 days
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