General Motors Co ILLIQ-MFMEM Liquidity Analysis
Liquidity prediction for Tuesday, July 21st, 2026
1 Day
29.45
1 Week
30.38
1 Month
30.75
Analysis last updated: Monday, July 20, 2026 at 09:44 PM UTC
News Impact Curve
How returns affect tomorrow's liquidityLiquidity Forecast
How liquidity evolves over timeParameter Estimates
Nov 18, 2010 to Jul 17, 2026Model Insight
Illiquidity shocks decay with a half-life of 6 trading days, meaning a shock loses half its impact after approximately 6 days. This multi-frequency model splits illiquidity into a fast short-run component and a slow-moving long-run level that drifts over the sample rather than a constant baseline.
ILLIQ-MFMEM Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 41 | |
α ARCH Response to squared shocks | 0.0638 | 0.13 |
β GARCH Volatility persistence | 0.8557 | 55.29*** |
γ leverage Additional response to negative shocks | -0.0638 | -0.07 |
λ₁ tau intercept Baseline long-term coefficient | 1.7655 | 0.21 |
λ₂ forecast adj. Forecast performance sensitivity | 0.5895 | 0.22 |
λ₃ tau persistence Long-term factor persistence | 0.3311 | 0.16 |
Persistence:
0.888
Half-life:
6 days
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