V-Lab
AES Corp/VA Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Monday, September 21st, 2026
1 Day
13.91
decreased by 0.26
1 Week
13.96
decreased by 0.21
1 Month
15.85
increased by 1.68
Analysis last updated: Friday, September 18, 2026 at 11:06 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jun 26, 1991 to Sep 18, 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 62 trading days.
μ
ILLIQ-SMEM Model
Tap to view equation
Time-varying baseline: illiquidity reverts to a slowly-shifting spline trend
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.3662 | 4.54*** |
| αARCH | 0.0798 | 13.35*** |
| βGARCH | 0.9090 | 138.30*** |
Spline Coefficients
K=7
| γ1 | -0.2362 | -7.41*** |
| γ2 | 0.3639 | 7.08*** |
| γ3 | -0.1765 | -4.40*** |
| γ4 | 0.0869 | 2.57** |
| γ5 | -0.0667 | -2.56** |
| γ6 | 0.0600 | 2.43** |
| γ7 | -0.1277 | -3.63*** |
0.989
Persistence62d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.3662 | 4.54*** |
α ARCH Response to squared shocks | 0.0798 | 13.35*** |
β GARCH Volatility persistence | 0.9090 | 138.30*** |
Spline Coefficients
K=7
| γ1 | -0.2362 | -7.41*** |
| γ2 | 0.3639 | 7.08*** |
| γ3 | -0.1765 | -4.40*** |
| γ4 | 0.0869 | 2.57** |
| γ5 | -0.0667 | -2.56** |
| γ6 | 0.0600 | 2.43** |
| γ7 | -0.1277 | -3.63*** |
Persistence:
0.989
Half-life:
62 days
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