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Xspray Pharma Ab 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 Friday, September 11th, 2026

1 Day

18,745.61

increased by 2,792.34

1 Week

15,536.04

decreased by 417.23

1 Month

18,062.76

increased by 2,109.49

Analysis last updated: Friday, September 11, 2026 at 09:19 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

All

graph of Xspray Pharma Ab ILLIQ-SMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Sep 28, 2017 to Sep 4, 2026

Model Insight

With persistence 1.000, illiquidity shocks have a half-life of 173286 trading days (~687.6 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 1.000, shock half-life ~173286 days
ParamValuet-stat
ωconst0.8265
5.79***
αARCH0.1218
0.02
βGARCH0.8782
0.17
γi Spline Coefficients
K=1
γ1-0.2144
-0.02

1.000

Persistence

173286d

Half-life
μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.8265
5.79***
α

ARCH

Response to squared shocks

0.1218
0.02
β

GARCH

Volatility persistence

0.8782
0.17
γi Spline Coefficients
K=1
γ1-0.2144
-0.02

Persistence:

1.000

Half-life:

173286 days