Skip to main content
V-Lab
V-Lab

Pfizer Inc Spline ILLIQ Liquidity Analysis

Illiquidity prediction for Friday, September 25th, 2026

1 Day

9.12

decreased by 0.01

1 Week

9.18

increased by 0.05

1 Month

10.75

increased by 1.62

Analysis last updated: Thursday, September 24, 2026 at 09:43 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Pfizer Inc 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

With persistence 0.998, illiquidity shocks have a half-life of 452 trading days (~1.8 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

μ

ILLIQ-SMEM Model

Tap to view equation

High persistence: persistence 0.998, shock half-life ~452 days
ParamValuet-stat
ωconst1.0191
10.94***
αARCH0.0494
14.34***
βGARCH0.9491
268.63***
∑γi Spline Coefficients
K=1
γ1-0.0006
-0.65

0.998

Persistence

452d

Half-life
μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.0191
10.94***
α

ARCH

Response to squared shocks

0.0494
14.34***
β

GARCH

Volatility persistence

0.9491
268.63***
∑γi Spline Coefficients
K=1
γ1-0.0006
-0.65

Persistence:

0.998

Half-life:

452 days