V-Lab
Vistra Corp Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Monday, September 14th, 2026
1 Day
27.12
decreased by 0.82
1 Week
27.47
decreased by 0.47
1 Month
31.31
increased by 3.37
Analysis last updated: Saturday, September 12, 2026 at 12:39 AM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Oct 4, 2016 to Sep 11, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 4560 trading days (~18.1 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 1.000, shock half-life ~4560 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 2.4831 | 2.88*** |
| αARCH | 0.1098 | 8.61*** |
| βGARCH | 0.8900 | 68.52*** |
Spline Coefficients
K=1
| γ1 | -0.0101 | -0.14 |
1.000
Persistence4560d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 2.4831 | 2.88*** |
α ARCH Response to squared shocks | 0.1098 | 8.61*** |
β GARCH Volatility persistence | 0.8900 | 68.52*** |
Spline Coefficients
K=1
| γ1 | -0.0101 | -0.14 |
Persistence:
1.000
Half-life:
4560 days
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