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Northwest Biotherapeutics Inc Asymmetric ILLIQ Liquidity Analysis
High-persistence model: shocks decay very slowly, so the theoretical long-run value may not be practically meaningful
Illiquidity prediction for Monday, August 17th, 2026
1 Day
29,170.17
increased by 12,033.40
1 Week
22,971.91
increased by 5,835.14
1 Month
54,272.05
increased by 37,135.28
Analysis last updated: Saturday, August 15, 2026 at 09:27 AM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Dec 14, 2001 to Aug 14, 2026Illiquid Asset
Model Insight
Estimated persistence of 1.000 is at or above 1 (non-stationary): illiquidity shocks do not decay and the long-run level is undefined, so long-horizon forecasts should be treated with caution.
μ
ILLIQ-AMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0000 | |
α ARCH Response to squared shocks | 0.7656 | 1.99** |
β GARCH Volatility persistence | 0.0000 | 0.00 |
γ leverage Additional response to negative shocks | 0.4687 | 1.09 |
Persistence:
1.000
Half-life:
-
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