Merck & Co Inc Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Tuesday, October 13th, 2026
1 Day
9.07
decreased by 0.35
1 Week
9.31
decreased by 0.11
1 Month
9.32
decreased by 0.10
Analysis last updated: Monday, October 12, 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 9, 2026Model Insight
With persistence 0.998, illiquidity shocks have a half-life of 402 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 ~402 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.0575 | 11.49*** |
| αARCH | 0.0420 | 12.52*** |
| βGARCH | 0.9563 | 281.43*** |
Spline Coefficients
K=1
| γ1 | -0.0020 | -2.29** |
0.998
Persistence402d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.0575 | 11.49*** |
α ARCH Response to squared shocks | 0.0420 | 12.52*** |
β GARCH Volatility persistence | 0.9563 | 281.43*** |
Spline Coefficients
K=1
| γ1 | -0.0020 | -2.29** |
Persistence:
0.998
Half-life:
402 days
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