V-Lab
PubMatic Inc Asymmetric ILLIQ Liquidity Analysis
Illiquidity prediction for Friday, September 25th, 2026
1 Day
1,499.93
increased by 12.59
1 Week
1,507.25
increased by 19.91
1 Month
1,882.23
increased by 394.89
Analysis last updated: Thursday, September 24, 2026 at 09:06 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Dec 9, 2020 to Sep 18, 2026Model Insight
With persistence 0.998, illiquidity shocks have a half-life of 391 trading days (~1.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
μ
ILLIQ-AMEM Model
Tap to view equation
High persistence: persistence 0.998, shock half-life ~391 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 5.0000 | 0.38 |
| αARCH | 0.0614 | 2.76*** |
| βGARCH | 0.9166 | 88.67*** |
| γleverage | 0.0405 | 0.86 |
0.998
Persistence391d
Half-lifeμ
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 | 0.0614 | 2.76*** |
β GARCH Volatility persistence | 0.9166 | 88.67*** |
γ leverage Additional response to negative shocks | 0.0405 | 0.86 |
Persistence:
0.998
Half-life:
391 days
Other PubMatic Inc Analyses
Other Asymmetric ILLIQ Analyses on Equities