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BB Biotech AG Spline ILLIQ Liquidity Analysis

Illiquidity prediction for Monday, August 24th, 2026

1 Day

2,508.34

increased by 262.23

1 Week

2,368.32

increased by 122.21

1 Month

2,417.89

increased by 171.78

Analysis last updated: Sunday, August 23, 2026 at 03:44 AM 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

Nov 15, 1993 to Aug 21, 2026

Model Insight

With persistence 0.995, illiquidity shocks have a half-life of 145 trading days (~0.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.9555
6.93***
α

ARCH

Response to squared shocks

0.1046
13.16***
β

GARCH

Volatility persistence

0.8907
94.80***
γi Spline Coefficients
K=1
γ1-0.0003
-0.17

Persistence:

0.995

Half-life:

145 days