V-Lab
PubMatic Inc Asymmetric ILLIQ Liquidity Analysis
Illiquidity prediction for Tuesday, September 8th, 2026
1 Day
2,392.75
increased by 324.39
1 Week
2,128.83
increased by 60.47
1 Month
2,285.63
increased by 217.27
Analysis last updated: Friday, September 4, 2026 at 09:11 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Dec 9, 2020 to Sep 4, 2026Model Insight
With persistence 0.998, illiquidity shocks have a half-life of 423 trading days (~1.7 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
μ
ILLIQ-AMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 5.0000 | 0.38 |
α ARCH Response to squared shocks | 0.0586 | 2.69*** |
β GARCH Volatility persistence | 0.9191 | 90.58*** |
γ leverage Additional response to negative shocks | 0.0413 | 0.89 |
Persistence:
0.998
Half-life:
423 days
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