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V-Lab

BB Biotech AG Spline ILLIQ Liquidity Analysis

Illiquidity prediction for Tuesday, August 4th, 2026

1 Day

25,469.57

increased by 856.14

1 Week

27,637.49

increased by 3,024.06

1 Month

27,594.41

increased by 2,980.98

Analysis last updated: Tuesday, August 4, 2026 at 06:38 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of BB Biotech AG ILLIQ-SMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Jun 16, 2000 to Jul 31, 2026

Model Insight

This model fits a time-varying baseline (a spline), so illiquidity mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 52 trading days.

μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.5757
4.28***
α

ARCH

Response to squared shocks

0.1563
23.22***
β

GARCH

Volatility persistence

0.8305
149.37***
γi Spline Coefficients
K=2
γ10.0006
0.12
γ20.0117
1.41

Persistence:

0.987

Half-life:

52 days