Froey AS Spline ILLIQ Liquidity Analysis
Inactive
Last recorded values (Thursday, August 17th, 2023):
1 Day
8,382.43
1 Week
3,741.30
1 Month
3,134.37
Analysis last updated: Wednesday, September 2, 2026 at 05:05 PM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Mar 29, 2021 to Aug 16, 2023Model 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 6 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 | 0.6313 | 3.76*** |
| αARCH | 0.2911 | 6.38*** |
| βGARCH | 0.5971 | 7.90*** |
Spline Coefficients
K=5
| γ1 | -7.0741 | -1.54 |
| γ2 | 5.4165 | 0.78 |
| γ3 | 8.4039 | 1.70* |
| γ4 | -26.3665 | -3.95*** |
| γ5 | 51.2924 | 4.10*** |
0.888
Persistence6d
Half-lifeμ
ILLIQ-SMEM Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.6313 | 3.76*** |
α ARCH Response to squared shocks | 0.2911 | 6.38*** |
β GARCH Volatility persistence | 0.5971 | 7.90*** |
Spline Coefficients
K=5
| γ1 | -7.0741 | -1.54 |
| γ2 | 5.4165 | 0.78 |
| γ3 | 8.4039 | 1.70* |
| γ4 | -26.3665 | -3.95*** |
| γ5 | 51.2924 | 4.10*** |
Persistence:
0.888
Half-life:
6 days
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