Solid Power Inc Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Monday, November 16th, 2026
1 Day
6,138.03
increased by 734.95
1 Week
4,965.76
decreased by 437.32
1 Month
4,633.11
decreased by 769.97
Analysis last updated: Friday, November 13, 2026 at 11:26 PM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Mar 24, 2021 to Nov 13, 2026Model Insight
With persistence 0.996, illiquidity shocks have a half-life of 179 trading days (~0.7 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 0.996, shock half-life ~179 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.7629 | 3.53*** |
| αARCH | 0.2482 | 15.00*** |
| βGARCH | 0.7479 | 42.99*** |
Spline Coefficients
K=1
| γ1 | -0.3025 | -2.90*** |
0.996
Persistence179d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.7629 | 3.53*** |
α ARCH Response to squared shocks | 0.2482 | 15.00*** |
β GARCH Volatility persistence | 0.7479 | 42.99*** |
Spline Coefficients
K=1
| γ1 | -0.3025 | -2.90*** |
Persistence:
0.996
Half-life:
179 days
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