V-Lab
Merck & Co Inc Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Tuesday, October 6th, 2026
1 Day
9.29
increased by 0.71
1 Week
8.80
increased by 0.22
1 Month
9.47
increased by 0.89
Analysis last updated: Monday, October 5, 2026 at 09:52 PM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jan 2, 1990 to Oct 2, 2026Model Insight
With persistence 0.998, illiquidity shocks have a half-life of 396 trading days (~1.6 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 0.998, shock half-life ~396 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.0580 | 11.48*** |
| αARCH | 0.0421 | 12.53*** |
| βGARCH | 0.9561 | 280.39*** |
Spline Coefficients
K=1
| γ1 | -0.0020 | -2.40** |
0.998
Persistence396d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.0580 | 11.48*** |
α ARCH Response to squared shocks | 0.0421 | 12.53*** |
β GARCH Volatility persistence | 0.9561 | 280.39*** |
Spline Coefficients
K=1
| γ1 | -0.0020 | -2.40** |
Persistence:
0.998
Half-life:
396 days
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