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HP Inc Spline ILLIQ Liquidity Analysis

Illiquidity prediction for Tuesday, September 22nd, 2026

1 Day

62.83

increased by 1.42

1 Week

62.35

increased by 0.94

1 Month

64.13

increased by 2.72

Analysis last updated: Monday, September 21, 2026 at 09:43 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of HP 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 347 trading days (~1.4 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 ~347 days
ParamValuet-stat
ωconst1.0456
9.18***
αARCH0.0659
14.65***
βGARCH0.9321
208.29***
γi Spline Coefficients
K=1
γ1-0.0003
-0.39

0.998

Persistence

347d

Half-life
μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.0456
9.18***
α

ARCH

Response to squared shocks

0.0659
14.65***
β

GARCH

Volatility persistence

0.9321
208.29***
γi Spline Coefficients
K=1
γ1-0.0003
-0.39

Persistence:

0.998

Half-life:

347 days