V-Lab
Weichai Heavy Machinery Co Ltd Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Friday, September 4th, 2026
1 Day
65.81
increased by 10.16
1 Week
64.45
increased by 8.80
1 Month
69.34
increased by 13.69
Analysis last updated: Friday, September 4, 2026 at 06:25 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Apr 2, 1998 to Aug 28, 2026Model Insight
With persistence 0.999, illiquidity shocks have a half-life of 1359 trading days (~5.4 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
μ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.8399 | 4.65*** |
α ARCH Response to squared shocks | 0.2819 | 15.82*** |
β GARCH Volatility persistence | 0.7176 | 40.38*** |
Spline Coefficients
K=8
| γ1 | -1.1785 | -2.24** |
| γ2 | 4.1269 | 3.52*** |
| γ3 | -5.5644 | -4.12*** |
| γ4 | 3.6532 | 3.41*** |
| γ5 | -1.2079 | -1.96** |
| γ6 | 0.1727 | 0.66 |
| γ7 | -0.1066 | -0.77 |
| γ8 | 0.0966 | 0.54 |
Persistence:
0.999
Half-life:
1359 days
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