V-Lab
Monolithic Power Systems Inc Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Monday, September 21st, 2026
1 Day
23.13
increased by 0.19
1 Week
24.47
increased by 1.53
1 Month
23.29
increased by 0.35
Analysis last updated: Friday, September 18, 2026 at 10:39 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Nov 19, 2004 to Sep 18, 2026Model Insight
With persistence 0.991, illiquidity shocks have a half-life of 73 trading days (~0.3 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 0.991, shock half-life ~73 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.0353 | 6.05*** |
| αARCH | 0.0909 | 12.34*** |
| βGARCH | 0.8997 | 114.80*** |
Spline Coefficients
K=4
| γ1 | -0.0155 | -0.74 |
| γ2 | -0.0041 | -0.12 |
| γ3 | 0.0253 | 0.92 |
| γ4 | -0.0190 | -0.58 |
0.991
Persistence73d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.0353 | 6.05*** |
α ARCH Response to squared shocks | 0.0909 | 12.34*** |
β GARCH Volatility persistence | 0.8997 | 114.80*** |
Spline Coefficients
K=4
| γ1 | -0.0155 | -0.74 |
| γ2 | -0.0041 | -0.12 |
| γ3 | 0.0253 | 0.92 |
| γ4 | -0.0190 | -0.58 |
Persistence:
0.991
Half-life:
73 days
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