V-Lab
Zai Lab Ltd Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Tuesday, August 25th, 2026
1 Day
922.99
decreased by 43.69
1 Week
1,036.88
increased by 70.20
1 Month
1,412.06
increased by 445.38
Analysis last updated: Monday, August 24, 2026 at 09:15 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Sep 20, 2017 to Aug 21, 2026Model Insight
With persistence 0.998, illiquidity shocks have a half-life of 428 trading days (~1.7 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
μ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.0013 | 6.18*** |
α ARCH Response to squared shocks | 0.1085 | 10.34*** |
β GARCH Volatility persistence | 0.8898 | 89.37*** |
Spline Coefficients
K=1
| γ1 | -0.0208 | -0.56 |
Persistence:
0.998
Half-life:
428 days
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