V-Lab
GD Power Development Co Ltd Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Friday, September 11th, 2026
1 Day
16.85
increased by 0.45
1 Week
15.62
decreased by 0.78
1 Month
14.66
decreased by 1.74
Analysis last updated: Friday, September 11, 2026 at 06:20 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Mar 18, 1997 to Sep 4, 2026Model Insight
With persistence 0.995, illiquidity shocks have a half-life of 134 trading days (~0.5 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 0.995, shock half-life ~134 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.0957 | 3.16*** |
| αARCH | 0.1826 | 20.71*** |
| βGARCH | 0.8122 | 94.95*** |
Spline Coefficients
K=10
| γ1 | 0.0657 | 0.32 |
| γ2 | -0.9719 | -2.85*** |
| γ3 | 3.2071 | 7.29*** |
| γ4 | -4.0767 | -5.88*** |
| γ5 | 2.4694 | 3.27*** |
| γ6 | -2.2493 | -3.51*** |
| γ7 | 3.6337 | 7.07*** |
| γ8 | -3.0240 | -8.74*** |
| γ9 | 1.0609 | 5.30*** |
| γ10 | -0.1504 | -0.68 |
0.995
Persistence134d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.0957 | 3.16*** |
α ARCH Response to squared shocks | 0.1826 | 20.71*** |
β GARCH Volatility persistence | 0.8122 | 94.95*** |
Spline Coefficients
K=10
| γ1 | 0.0657 | 0.32 |
| γ2 | -0.9719 | -2.85*** |
| γ3 | 3.2071 | 7.29*** |
| γ4 | -4.0767 | -5.88*** |
| γ5 | 2.4694 | 3.27*** |
| γ6 | -2.2493 | -3.51*** |
| γ7 | 3.6337 | 7.07*** |
| γ8 | -3.0240 | -8.74*** |
| γ9 | 1.0609 | 5.30*** |
| γ10 | -0.1504 | -0.68 |
Persistence:
0.995
Half-life:
134 days
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