V-Lab
CVS Health Corp Asymmetric ILLIQ Liquidity Analysis
Illiquidity prediction for Monday, August 31st, 2026
1 Day
22.54
decreased by 1.24
1 Week
22.22
decreased by 1.56
1 Month
20.95
decreased by 2.83
Analysis last updated: Friday, August 28, 2026 at 10:26 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jan 2, 1990 to Aug 28, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 1526 trading days (~6.1 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
Asymmetry: Illiquidity rises 98% more after negative returns
μ
ILLIQ-AMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0899 | 1.76* |
α ARCH Response to squared shocks | 0.0419 | 6.09*** |
β GARCH Volatility persistence | 0.9371 | 127.15*** |
γ leverage Additional response to negative shocks | 0.0410 | 3.52*** |
Persistence:
1.000
Half-life:
1526 days
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