V-Lab
AT&T Inc ILLIQ-MFMEM Liquidity Analysis
Illiquidity prediction for Tuesday, September 1st, 2026
1 Day
13.60
1 Week
12.87
1 Month
12.49
Analysis last updated: Tuesday, September 1, 2026 at 09:54 AM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jan 2, 1990 to Aug 28, 2026Model Insight
Illiquidity shocks decay with a half-life of 7 trading days, meaning a shock loses half its impact after approximately 7 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
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 56 | |
α ARCH Response to squared shocks | 0.0644 | 10.51*** |
β GARCH Volatility persistence | 0.8679 | 62.46*** |
γ leverage Additional response to negative shocks | -0.0644 | -1.62 |
λ₁ tau intercept Baseline long-term coefficient | 0.0343 | 1.85* |
λ₂ forecast adj. Forecast performance sensitivity | 0.0786 | 3.37*** |
λ₃ tau persistence Long-term factor persistence | 0.9186 | 38.46*** |
Persistence:
0.900
Half-life:
7 days
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