V-Lab
Weichai Heavy Machinery Co Ltd Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Thursday, September 24th, 2026
1 Day
55.46
increased by 10.35
1 Week
49.64
increased by 4.53
1 Month
61.12
increased by 16.01
Analysis last updated: Thursday, September 24, 2026 at 06:19 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Apr 2, 1998 to Sep 18, 2026Model Insight
With persistence 0.999, illiquidity shocks have a half-life of 1320 trading days (~5.2 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
μ
ILLIQ-SMEM Model
Tap to view equation
High persistence: persistence 0.999, shock half-life ~1320 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.8356 | 4.60*** |
| αARCH | 0.2818 | 15.83*** |
| βGARCH | 0.7177 | 40.42*** |
Spline Coefficients
K=8
| γ1 | -1.1808 | -2.30** |
| γ2 | 4.1120 | 3.55*** |
| γ3 | -5.5424 | -4.12*** |
| γ4 | 3.6602 | 3.41*** |
| γ5 | -1.2235 | -1.97** |
| γ6 | 0.1732 | 0.66 |
| γ7 | -0.1020 | -0.73 |
| γ8 | 0.0959 | 0.54 |
0.999
Persistence1320d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.8356 | 4.60*** |
α ARCH Response to squared shocks | 0.2818 | 15.83*** |
β GARCH Volatility persistence | 0.7177 | 40.42*** |
Spline Coefficients
K=8
| γ1 | -1.1808 | -2.30** |
| γ2 | 4.1120 | 3.55*** |
| γ3 | -5.5424 | -4.12*** |
| γ4 | 3.6602 | 3.41*** |
| γ5 | -1.2235 | -1.97** |
| γ6 | 0.1732 | 0.66 |
| γ7 | -0.1020 | -0.73 |
| γ8 | 0.0959 | 0.54 |
Persistence:
0.999
Half-life:
1320 days
Other Weichai Heavy Machinery Co Ltd Analyses
Other Spline ILLIQ Analyses on International Equities