V-Lab
BB Biotech AG ILLIQ-MFMEM Liquidity Analysis
Illiquidity prediction for Monday, October 5th, 2026
1 Day
33,420.60
1 Week
32,964.13
1 Month
30,884.32
Analysis last updated: Saturday, October 3, 2026 at 06:50 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jun 16, 2000 to Oct 2, 2026Model Insight
With persistence 0.990, illiquidity shocks have a half-life of 70 trading days (~0.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. 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
Tap to view equation
| Param | Value | t-stat |
|---|---|---|
| mwindow | 86 | |
| αARCH | 0.0727 | 28.65*** |
| βGARCH | 0.9281 | 849.09*** |
| γleverage | -0.0213 | -1.72* |
| λ₁tau intercept | 10.0000 | 1.16 |
| λ₂forecast adj. | 0.0000 | 0.00 |
| λ₃tau persistence | 0.9935 | 171.92*** |
0.990
Persistence70d
Half-lifeILLIQ-MFMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 86 | |
α ARCH Response to squared shocks | 0.0727 | 28.65*** |
β GARCH Volatility persistence | 0.9281 | 849.09*** |
γ leverage Additional response to negative shocks | -0.0213 | -1.72* |
λ₁ tau intercept Baseline long-term coefficient | 10.0000 | 1.16 |
λ₂ forecast adj. Forecast performance sensitivity | 0.0000 | 0.00 |
λ₃ tau persistence Long-term factor persistence | 0.9935 | 171.92*** |
Persistence:
0.990
Half-life:
70 days
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