V-Lab
Zumiez Inc Asymmetric ILLIQ Liquidity Analysis
Illiquidity prediction for Tuesday, September 22nd, 2026
1 Day
5,727.32
increased by 40.79
1 Week
6,072.74
increased by 386.21
1 Month
5,765.84
increased by 79.31
Analysis last updated: Monday, September 21, 2026 at 09:35 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
May 6, 2005 to Sep 18, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 5153 trading days (~20.4 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
Asymmetry: Illiquidity rises 86% more after negative returns
μ
ILLIQ-AMEM Model
Tap to view equation
High persistence: persistence 1.000, shock half-life ~5153 daysAsymmetry: Illiquidity rises 86% more after negative returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 5.0000 | 0.80 |
| αARCH | 0.0627 | 5.23*** |
| βGARCH | 0.9103 | 147.97*** |
| γleverage | 0.0538 | 2.49** |
1.000
Persistence5153d
Half-lifeμ
ILLIQ-AMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 5.0000 | 0.80 |
α ARCH Response to squared shocks | 0.0627 | 5.23*** |
β GARCH Volatility persistence | 0.9103 | 147.97*** |
γ leverage Additional response to negative shocks | 0.0538 | 2.49** |
Persistence:
1.000
Half-life:
5153 days
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