CVS Health Corp Asymmetric ILLIQ Liquidity Analysis
Illiquidity prediction for Monday, November 2nd, 2026
1 Day
20.57
decreased by 1.18
1 Week
21.51
decreased by 0.24
1 Month
19.55
decreased by 2.20
Analysis last updated: Friday, October 30, 2026 at 10:03 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 1.000, illiquidity shocks have a half-life of 1615 trading days (~6.4 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 ~1615 daysAsymmetry: Illiquidity rises 95% more after negative returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0856 | 1.72* |
| αARCH | 0.0423 | 6.13*** |
| βGARCH | 0.9372 | 127.65*** |
| γleverage | 0.0401 | 3.45*** |
1.000
Persistence1615d
Half-lifeμ
ILLIQ-AMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0856 | 1.72* |
α ARCH Response to squared shocks | 0.0423 | 6.13*** |
β GARCH Volatility persistence | 0.9372 | 127.65*** |
γ leverage Additional response to negative shocks | 0.0401 | 3.45*** |
Persistence:
1.000
Half-life:
1615 days
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