V-Lab
BioPharma Credit PLC Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Tuesday, August 18th, 2026
1 Day
6,842.32
increased by 3,874.17
1 Week
3,525.16
increased by 557.01
1 Month
3,057.61
increased by 89.46
Analysis last updated: Tuesday, August 18, 2026 at 08:38 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Mar 24, 2017 to Aug 14, 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 6 trading days.
μ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.0268 | 2.96*** |
α ARCH Response to squared shocks | 0.1363 | 4.48*** |
β GARCH Volatility persistence | 0.7598 | 13.39*** |
Spline Coefficients
K=8
| γ1 | -3.8755 | -3.62*** |
| γ2 | 5.6572 | 3.84*** |
| γ3 | -2.5226 | -3.49*** |
| γ4 | 1.3964 | 2.48** |
| γ5 | -0.9575 | -1.84* |
| γ6 | 0.9415 | 1.56 |
| γ7 | -1.3993 | -1.95* |
| γ8 | 0.6182 | 0.76 |
Persistence:
0.896
Half-life:
6 days
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