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BB Biotech AG ILLIQ-MFMEM Liquidity Analysis

Illiquidity prediction for Friday, September 11th, 2026

1 Day

30,448.21

increased by 2,877.09

1 Week

28,156.74

increased by 585.62

1 Month

25,376.92

decreased by 2,194.20

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-MFMEM

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

Illiquidity shocks decay with a half-life of 64 trading days, meaning a shock loses half its impact after approximately 64 days. This multi-frequency model splits illiquidity into a fast short-run component and a slow-moving long-run level that drifts over the sample rather than a constant baseline.

μ

ILLIQ-MFMEM Model

Tap to view equation

Shock decay: Shocks decay with a 64-day half-life
ParamValuet-stat
mwindow81
αARCH0.0730
28.20***
βGARCH0.9277
797.65***
γleverage-0.0228
-1.81*
λ₁tau intercept10.0000
1.21
λ₂forecast adj.0.0000
0.00
λ₃tau persistence0.9934
186.34***

0.989

Persistence

64d

Half-life
μ

ILLIQ-MFMEM Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

81
α

ARCH

Response to squared shocks

0.0730
28.20***
β

GARCH

Volatility persistence

0.9277
797.65***
γ

leverage

Additional response to negative shocks

-0.0228
-1.81*
λ₁

tau intercept

Baseline long-term coefficient

10.0000
1.21
λ₂

forecast adj.

Forecast performance sensitivity

0.0000
0.00
λ₃

tau persistence

Long-term factor persistence

0.9934
186.34***

Persistence:

0.989

Half-life:

64 days