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
Liquidity prediction for Tuesday, July 14th, 2026
1 Day
27,113.72
increased by 25,944.30
1 Week
31,633.86
increased by 30,464.44
1 Month
41,166.73
increased by 39,997.31
Analysis last updated: Tuesday, July 14, 2026 at 09:10 AM UTC
News Impact Curve
How returns affect tomorrow's liquidityLiquidity Forecast
How liquidity evolves over timeParameter Estimates
Dec 14, 2001 to Jul 10, 2026Model 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 | 0.6922 | 1.35 |
β GARCH Volatility persistence | 0.0000 | 0.00 |
γ leverage Additional response to negative shocks | 0.6156 | 1.11 |
Persistence:
1.000
Half-life:
-
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