Vistra Corp Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Friday, October 23rd, 2026
1 Day
30.00
increased by 3.71
1 Week
26.12
decreased by 0.17
1 Month
22.50
decreased by 3.79
Analysis last updated: Thursday, October 22, 2026 at 09:48 PM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Oct 4, 2016 to Oct 16, 2026Model Insight
With persistence 1.000, illiquidity shocks have a half-life of 4530 trading days (~18.0 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 ~4530 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 2.4890 | 2.88*** |
| αARCH | 0.1097 | 8.58*** |
| βGARCH | 0.8902 | 68.41*** |
Spline Coefficients
K=1
| γ1 | -0.0101 | -0.15 |
1.000
Persistence4530d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 2.4890 | 2.88*** |
α ARCH Response to squared shocks | 0.1097 | 8.58*** |
β GARCH Volatility persistence | 0.8902 | 68.41*** |
Spline Coefficients
K=1
| γ1 | -0.0101 | -0.15 |
Persistence:
1.000
Half-life:
4530 days
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