V-Lab
Atara Biotherapeutics Inc Asymmetric ILLIQ Liquidity Analysis
Illiquidity prediction for Monday, July 27th, 2026
1 Day
80,033.34
decreased by 19.93
1 Week
73,143.86
decreased by 6,909.41
1 Month
59,830.88
decreased by 20,222.39
Analysis last updated: Friday, July 24, 2026 at 09:30 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Oct 16, 2014 to Jul 24, 2026Model Insight
With persistence 0.999, illiquidity shocks have a half-life of 821 trading days (~3.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
Asymmetry: Illiquidity rises 144% more after negative returns
μ
ILLIQ-AMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 5.0000 | 1.78* |
α ARCH Response to squared shocks | 0.0550 | 16.57*** |
β GARCH Volatility persistence | 0.9044 | 488.35*** |
γ leverage Additional response to negative shocks | 0.0795 | 15.15*** |
Persistence:
0.999
Half-life:
821 days
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