V-Lab
PubMatic Inc Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Tuesday, September 8th, 2026
1 Day
2,538.99
increased by 267.55
1 Week
2,308.21
increased by 36.77
1 Month
2,357.26
increased by 85.82
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
This model fits a time-varying baseline (a spline), so illiquidity mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 18 trading days.
μ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.2285 | 11.51*** |
α ARCH Response to squared shocks | 0.0901 | 6.62*** |
β GARCH Volatility persistence | 0.8712 | 42.98*** |
Spline Coefficients
K=1
| γ1 | -0.0729 | -3.91*** |
Persistence:
0.961
Half-life:
18 days
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