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General Motors Co Asymmetric ILLIQ Liquidity Analysis

Illiquidity prediction for Tuesday, November 3rd, 2026

1 Day

24.12

decreased by 0.74

1 Week

25.82

increased by 0.96

1 Month

28.44

increased by 3.58

Analysis last updated: Monday, November 2, 2026 at 10:31 PM UTC

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Date Range:

from

11/02/2024

to

11/02/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of General Motors Co ILLIQ-AMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Nov 18, 2010 to Oct 30, 2026

Model Insight

With persistence 0.991, illiquidity shocks have a half-life of 78 trading days (~0.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Asymmetry: illiquidity responds almost entirely to negative returns

μ

ILLIQ-AMEM Model

Tap to view equation

High persistence: persistence 0.991, shock half-life ~78 daysAsymmetry: illiquidity responds almost entirely to negative returns
ParamValuet-stat
ωconst0.3164
2.58***
αARCH0.0123
1.52
βGARCH0.9390
139.34***
γleverage0.0797
4.35***

0.991

Persistence

78d

Half-life
μ

ILLIQ-AMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.3164
2.58***
α

ARCH

Response to squared shocks

0.0123
1.52
β

GARCH

Volatility persistence

0.9390
139.34***
γ

leverage

Additional response to negative shocks

0.0797
4.35***

Persistence:

0.991

Half-life:

78 days