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V-Lab

BB Biotech AG Spline ILLIQ Liquidity Analysis

Illiquidity prediction for Friday, September 11th, 2026

1 Day

38,954.61

increased by 5,637.88

1 Week

35,694.92

increased by 2,378.19

1 Month

29,020.03

decreased by 4,296.70

Analysis last updated: Friday, September 11, 2026 at 07:08 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 Sep 4, 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

Time-varying baseline: illiquidity reverts to a slowly-shifting spline trend
ParamValuet-stat
ωconst0.5760
4.33***
αARCH0.1559
23.24***
βGARCH0.8309
149.95***
γi Spline Coefficients
K=2
γ10.0007
0.15
γ20.0115
1.40

0.987

Persistence

52d

Half-life
μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.5760
4.33***
α

ARCH

Response to squared shocks

0.1559
23.24***
β

GARCH

Volatility persistence

0.8309
149.95***
γi Spline Coefficients
K=2
γ10.0007
0.15
γ20.0115
1.40

Persistence:

0.987

Half-life:

52 days