Polytronics Technology Corp Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Thursday, October 22nd, 2026
1 Day
556.32
decreased by 128.18
1 Week
639.06
decreased by 45.44
1 Month
373.14
decreased by 311.36
Analysis last updated: Thursday, October 22, 2026 at 08:28 PM UTC
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News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jul 3, 2003 to Oct 16, 2026Model Insight
With persistence 0.996, illiquidity shocks have a half-life of 176 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 ~176 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.7747 | 5.17*** |
| αARCH | 0.2186 | 4.34*** |
| βGARCH | 0.7775 | 17.10*** |
Spline Coefficients
K=7
| γ1 | -3.7402 | -1.50 |
| γ2 | 8.1291 | 1.44 |
| γ3 | -6.2865 | -1.38 |
| γ4 | 1.9530 | 1.41 |
| γ5 | -0.1973 | -1.37 |
| γ6 | 0.4110 | 4.16*** |
| γ7 | -0.6225 | -5.14*** |
0.996
Persistence176d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.7747 | 5.17*** |
α ARCH Response to squared shocks | 0.2186 | 4.34*** |
β GARCH Volatility persistence | 0.7775 | 17.10*** |
Spline Coefficients
K=7
| γ1 | -3.7402 | -1.50 |
| γ2 | 8.1291 | 1.44 |
| γ3 | -6.2865 | -1.38 |
| γ4 | 1.9530 | 1.41 |
| γ5 | -0.1973 | -1.37 |
| γ6 | 0.4110 | 4.16*** |
| γ7 | -0.6225 | -5.14*** |
Persistence:
0.996
Half-life:
176 days
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