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V-Lab

CVS Health Corp Spline ILLIQ Liquidity Analysis

High-persistence model: shocks decay very slowly, so the theoretical long-run value may not be practically meaningful

Illiquidity prediction for Monday, September 21st, 2026

1 Day

20.64

decreased by 1.11

1 Week

20.29

decreased by 1.46

1 Month

20.64

decreased by 1.11

Analysis last updated: Friday, September 18, 2026 at 11:21 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of CVS Health Corp ILLIQ-SMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Jan 2, 1990 to Sep 18, 2026

Model Insight

Estimated persistence of 1.000 is at or above 1 (non-stationary): illiquidity shocks do not decay and the long-run level is undefined, so long-horizon forecasts should be treated with caution.

μ

ILLIQ-SMEM Model

Tap to view equation

High persistence: persistence 1.000 ≥ 1, shocks do not decay
ParamValuet-stat
ωconst0.9749
αARCH0.0820
βGARCH0.9180
γi Spline Coefficients
K=1
γ10.0275

1.000

Persistence

-

Half-life
μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.9749
α

ARCH

Response to squared shocks

0.0820
β

GARCH

Volatility persistence

0.9180
γi Spline Coefficients
K=1
γ10.0275

Persistence:

1.000

Half-life:

-