Alphabet Inc Asymmetric ILLIQ Liquidity Analysis
Illiquidity prediction for Monday, October 12th, 2026
1 Day
1.49
decreased by 0.04
1 Week
1.54
increased by 0.01
1 Month
1.68
increased by 0.15
Analysis last updated: Saturday, October 10, 2026 at 12:07 AM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Aug 19, 2004 to Oct 9, 2026Model Insight
With persistence 0.999, illiquidity shocks have a half-life of 759 trading days (~3.0 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
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High persistence: persistence 0.999, shock half-life ~759 daysAsymmetry: illiquidity responds almost entirely to negative returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0164 | 1.94* |
| αARCH | 0.0160 | 2.80*** |
| βGARCH | 0.9501 | 215.93*** |
| γleverage | 0.0660 | 4.94*** |
0.999
Persistence759d
Half-lifeμ
ILLIQ-AMEM Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0164 | 1.94* |
α ARCH Response to squared shocks | 0.0160 | 2.80*** |
β GARCH Volatility persistence | 0.9501 | 215.93*** |
γ leverage Additional response to negative shocks | 0.0660 | 4.94*** |
Persistence:
0.999
Half-life:
759 days
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