V-Lab
Boeing Co/The Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Tuesday, September 8th, 2026
1 Day
10.11
decreased by 0.11
1 Week
10.33
increased by 0.11
1 Month
12.00
increased by 1.78
Analysis last updated: Friday, September 4, 2026 at 10:37 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 569 trading days (~2.3 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 ~569 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.0390 | 9.76*** |
| αARCH | 0.0611 | 15.71*** |
| βGARCH | 0.9377 | 237.04*** |
Spline Coefficients
K=1
| γ1 | -0.0038 | -3.07*** |
0.999
Persistence569d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.0390 | 9.76*** |
α ARCH Response to squared shocks | 0.0611 | 15.71*** |
β GARCH Volatility persistence | 0.9377 | 237.04*** |
Spline Coefficients
K=1
| γ1 | -0.0038 | -3.07*** |
Persistence:
0.999
Half-life:
569 days
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