BB Biotech AG ILLIQ-MFMEM Liquidity Analysis
Illiquidity prediction for Monday, October 26th, 2026
1 Day
53,608.42
1 Week
50,675.58
1 Month
40,954.94
Analysis last updated: Sunday, October 25, 2026 at 03:08 AM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jun 16, 2000 to Oct 23, 2026Model Insight
Illiquidity shocks decay with a half-life of 51 trading days, meaning a shock loses half its impact after approximately 51 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.
ILLIQ-MFMEM Model
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| Param | Value | t-stat |
|---|---|---|
| mwindow | 21 | |
| αARCH | 0.0734 | 23.05*** |
| βGARCH | 0.9268 | 371.93*** |
| γleverage | -0.0273 | -2.04** |
| λ₁tau intercept | 10.0000 | 1.40 |
| λ₂forecast adj. | 0.0000 | 0.00 |
| λ₃tau persistence | 0.9936 | 245.58*** |
0.987
Persistence51d
Half-lifeILLIQ-MFMEM Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 21 | |
α ARCH Response to squared shocks | 0.0734 | 23.05*** |
β GARCH Volatility persistence | 0.9268 | 371.93*** |
γ leverage Additional response to negative shocks | -0.0273 | -2.04** |
λ₁ tau intercept Baseline long-term coefficient | 10.0000 | 1.40 |
λ₂ forecast adj. Forecast performance sensitivity | 0.0000 | 0.00 |
λ₃ tau persistence Long-term factor persistence | 0.9936 | 245.58*** |
Persistence:
0.987
Half-life:
51 days
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