V-Lab
Amana Cooperative Insurance Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Sunday, October 4th, 2026
1 Day
4,023.64
increased by 5.99
1 Week
4,803.48
increased by 785.83
1 Month
5,338.38
increased by 1,320.73
Analysis last updated: Friday, October 2, 2026 at 08:52 PM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jun 25, 2010 to Oct 1, 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 38 trading days.
μ
ILLIQ-SMEM Model
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Time-varying baseline: illiquidity reverts to a slowly-shifting spline trend
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.9336 | 5.97*** |
| αARCH | 0.2509 | 13.29*** |
| βGARCH | 0.7310 | 40.82*** |
Spline Coefficients
K=9
| γ1 | -0.6197 | -1.86* |
| γ2 | 1.4379 | 2.26** |
| γ3 | -1.5588 | -2.18** |
| γ4 | 1.2511 | 1.79* |
| γ5 | -1.6152 | -2.20** |
| γ6 | 3.1199 | 2.39** |
| γ7 | -4.0099 | -2.18** |
| γ8 | 3.5647 | 2.08** |
| γ9 | -3.0165 | -2.27** |
0.982
Persistence38d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.9336 | 5.97*** |
α ARCH Response to squared shocks | 0.2509 | 13.29*** |
β GARCH Volatility persistence | 0.7310 | 40.82*** |
Spline Coefficients
K=9
| γ1 | -0.6197 | -1.86* |
| γ2 | 1.4379 | 2.26** |
| γ3 | -1.5588 | -2.18** |
| γ4 | 1.2511 | 1.79* |
| γ5 | -1.6152 | -2.20** |
| γ6 | 3.1199 | 2.39** |
| γ7 | -4.0099 | -2.18** |
| γ8 | 3.5647 | 2.08** |
| γ9 | -3.0165 | -2.27** |
Persistence:
0.982
Half-life:
38 days
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