CVS Health Corp Asymmetric ILLIQ Liquidity Analysis
Illiquidity prediction for Monday, October 12th, 2026
1 Day
19.51
increased by 0.44
1 Week
19.95
increased by 0.88
1 Month
21.53
increased by 2.46
Analysis last updated: Saturday, October 10, 2026 at 01:27 AM 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 9, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 1599 trading days (~6.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
Asymmetry: Illiquidity rises 95% more after negative returns
μ
ILLIQ-AMEM Model
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High persistence: persistence 1.000, shock half-life ~1599 daysAsymmetry: Illiquidity rises 95% more after negative returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0861 | 1.73* |
| αARCH | 0.0424 | 6.13*** |
| βGARCH | 0.9371 | 127.44*** |
| γleverage | 0.0403 | 3.46*** |
1.000
Persistence1599d
Half-lifeμ
ILLIQ-AMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0861 | 1.73* |
α ARCH Response to squared shocks | 0.0424 | 6.13*** |
β GARCH Volatility persistence | 0.9371 | 127.44*** |
γ leverage Additional response to negative shocks | 0.0403 | 3.46*** |
Persistence:
1.000
Half-life:
1599 days
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