CVS Health Corp Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Monday, November 2nd, 2026
1 Day
19.23
decreased by 1.24
1 Week
20.46
decreased by 0.01
1 Month
18.59
decreased by 1.88
Analysis last updated: Friday, October 30, 2026 at 10:07 PM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jan 2, 1990 to Oct 30, 2026Model Insight
With persistence 0.999, illiquidity shocks have a half-life of 661 trading days (~2.6 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 ~661 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.0577 | 7.95*** |
| αARCH | 0.0678 | 7.71*** |
| βGARCH | 0.9312 | 112.43*** |
Spline Coefficients
K=2
| γ1 | -0.0089 | -1.76* |
| γ2 | 0.0177 | 2.00** |
0.999
Persistence661d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.0577 | 7.95*** |
α ARCH Response to squared shocks | 0.0678 | 7.71*** |
β GARCH Volatility persistence | 0.9312 | 112.43*** |
Spline Coefficients
K=2
| γ1 | -0.0089 | -1.76* |
| γ2 | 0.0177 | 2.00** |
Persistence:
0.999
Half-life:
661 days
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