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Northwest Biotherapeutics Inc Spline ILLIQ Liquidity Analysis

Illiquidity prediction for Friday, November 13th, 2026

1 Day

36,041.68

increased by 1,580.24

1 Week

36,772.31

increased by 2,310.87

1 Month

42,065.66

increased by 7,604.22

Analysis last updated: Friday, November 13, 2026 at 10:10 AM UTC

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Date Range:

from

11/12/2024

to

11/12/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Northwest Biotherapeutics Inc ILLIQ-SMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Dec 14, 2001 to Nov 6, 2026

Model Insight

With persistence 0.998, illiquidity shocks have a half-life of 345 trading days (~1.4 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

μ

ILLIQ-SMEM Model

Tap to view equation

High persistence: persistence 0.998, shock half-life ~345 days
ParamValuet-stat
ωconst1.2968
3.83***
αARCH0.1326
14.23***
βGARCH0.8654
90.94***
∑γi Spline Coefficients
K=3
γ1-0.1407
-5.93***
γ20.2584
7.16***
γ3-0.1567
-4.81***

0.998

Persistence

345d

Half-life
μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.2968
3.83***
α

ARCH

Response to squared shocks

0.1326
14.23***
β

GARCH

Volatility persistence

0.8654
90.94***
∑γi Spline Coefficients
K=3
γ1-0.1407
-5.93***
γ20.2584
7.16***
γ3-0.1567
-4.81***

Persistence:

0.998

Half-life:

345 days