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Northwest Biotherapeutics Inc Spline 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

7,873,977,000,000,000,000,000,000.00

decreased by 2,378,543,000,000,000,000,000,000.00

1 Week

5,876,307,400,000,000,000,000,000.00

decreased by 4,376,212,600,000,000,000,000,000.00

1 Month

1,526,091,869,628,571,600,000,000.00

decreased by 8,726,428,130,371,429,000,000,000.00

Analysis last updated: Saturday, August 15, 2026 at 09:27 AM UTC

Date Range:

from

to

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 Aug 14, 2026

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-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0918
α

ARCH

Response to squared shocks

0.2320
β

GARCH

Volatility persistence

0.7680
γi Spline Coefficients
K=10
γ1-9.7629
γ210.5539
γ3-20.8549
γ442.2252
γ5-35.1134
γ623.5100
γ79.2625
γ8-32.3576
γ939.7467
γ10-15.0366

Persistence:

1.000

Half-life:

-