V-Lab
Goldman Sachs Group Inc/The Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Friday, September 25th, 2026
1 Day
7.51
decreased by 0.03
1 Week
7.56
increased by 0.02
1 Month
7.68
increased by 0.14
Analysis last updated: Thursday, September 24, 2026 at 09:38 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
May 4, 1999 to Sep 18, 2026Model Insight
With persistence 0.997, illiquidity shocks have a half-life of 242 trading days (~1.0 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
μ
ILLIQ-SMEM Model
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High persistence: persistence 0.997, shock half-life ~242 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.1124 | 8.43*** |
| αARCH | 0.0551 | 12.29*** |
| βGARCH | 0.9421 | 206.18*** |
Spline Coefficients
K=1
| γ1 | -0.0014 | -1.14 |
0.997
Persistence242d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.1124 | 8.43*** |
α ARCH Response to squared shocks | 0.0551 | 12.29*** |
β GARCH Volatility persistence | 0.9421 | 206.18*** |
Spline Coefficients
K=1
| γ1 | -0.0014 | -1.14 |
Persistence:
0.997
Half-life:
242 days
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