Sportamore AB Spline ILLIQ Liquidity Analysis
Inactive
Last recorded values (Monday, May 11th, 2020):
1 Day
124,588.10
1 Week
161,416.40
1 Month
127,465.35
Analysis last updated: Wednesday, September 2, 2026 at 04:02 PM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Oct 25, 2012 to May 8, 2020Model 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 16 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 | 2.7279 | 4.47*** |
| αARCH | 0.1244 | 5.22*** |
| βGARCH | 0.8330 | 22.42*** |
Spline Coefficients
K=2
| γ1 | -0.1055 | -1.41 |
| γ2 | 0.3604 | 2.92*** |
0.957
Persistence16d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 2.7279 | 4.47*** |
α ARCH Response to squared shocks | 0.1244 | 5.22*** |
β GARCH Volatility persistence | 0.8330 | 22.42*** |
Spline Coefficients
K=2
| γ1 | -0.1055 | -1.41 |
| γ2 | 0.3604 | 2.92*** |
Persistence:
0.957
Half-life:
16 days
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