V-Lab
PubMatic Inc Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Friday, September 25th, 2026
1 Day
1,756.47
increased by 79.79
1 Week
1,714.23
increased by 37.55
1 Month
1,962.74
increased by 286.06
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
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 19 trading days.
μ
ILLIQ-SMEM Model
Tap to view equation
Time-varying baseline: illiquidity reverts to a slowly-shifting spline trend
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.1960 | 11.01*** |
| αARCH | 0.0908 | 6.78*** |
| βGARCH | 0.8736 | 44.91*** |
Spline Coefficients
K=1
| γ1 | -0.0841 | -4.31*** |
0.964
Persistence19d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.1960 | 11.01*** |
α ARCH Response to squared shocks | 0.0908 | 6.78*** |
β GARCH Volatility persistence | 0.8736 | 44.91*** |
Spline Coefficients
K=1
| γ1 | -0.0841 | -4.31*** |
Persistence:
0.964
Half-life:
19 days
Other PubMatic Inc Analyses
Other Spline ILLIQ Analyses on Equities