V-Lab
BB Biotech AG Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Monday, August 10th, 2026
1 Day
22,913.31
increased by 3,148.51
1 Week
22,672.71
increased by 2,907.91
1 Month
26,238.06
increased by 6,473.26
Analysis last updated: Saturday, August 8, 2026 at 08:15 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jun 16, 2000 to Aug 7, 2026Model 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
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.5770 | 4.29*** |
α ARCH Response to squared shocks | 0.1563 | 23.26*** |
β GARCH Volatility persistence | 0.8305 | 149.46*** |
Spline Coefficients
K=2
| γ1 | 0.0007 | 0.13 |
| γ2 | 0.0115 | 1.39 |
Persistence:
0.987
Half-life:
52 days
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