V-Lab
Boeing Co/The Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Monday, September 28th, 2026
1 Day
9.78
decreased by 0.24
1 Week
10.17
increased by 0.15
1 Month
10.52
increased by 0.50
Analysis last updated: Friday, September 25, 2026 at 11:59 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jan 2, 1990 to Sep 25, 2026Model Insight
With persistence 0.999, illiquidity shocks have a half-life of 571 trading days (~2.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
μ
ILLIQ-SMEM Model
Tap to view equation
High persistence: persistence 0.999, shock half-life ~571 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.0387 | 9.76*** |
| αARCH | 0.0609 | 15.71*** |
| βGARCH | 0.9379 | 237.68*** |
Spline Coefficients
K=1
| γ1 | -0.0038 | -3.06*** |
0.999
Persistence571d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.0387 | 9.76*** |
α ARCH Response to squared shocks | 0.0609 | 15.71*** |
β GARCH Volatility persistence | 0.9379 | 237.68*** |
Spline Coefficients
K=1
| γ1 | -0.0038 | -3.06*** |
Persistence:
0.999
Half-life:
571 days
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