V-Lab
Cnooc Ltd Spline ILLIQ Liquidity Analysis
Illiquidity prediction for Monday, September 21st, 2026
1 Day
29,965.35
decreased by 1,369.58
1 Week
29,746.02
decreased by 1,588.91
1 Month
25,932.37
decreased by 5,402.56
Analysis last updated: Saturday, September 19, 2026 at 09:16 PM UTC
News Impact Curve
How returns affect tomorrow's illiquidityIlliquidity Forecast
How illiquidity evolves over timeParameter Estimates
Jul 26, 2023 to Sep 18, 2026Model Insight
This model fits a time-varying baseline (a spline), so illiquidity mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 5 trading days.
μ
ILLIQ-SMEM Model
Tap to view equation
Time-varying baseline: illiquidity reverts to a slowly-shifting spline trend
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.9665 | 3.43*** |
| αARCH | 0.0823 | 3.26*** |
| βGARCH | 0.7963 | 9.92*** |
Spline Coefficients
K=2
| γ1 | -1.1497 | -2.69*** |
| γ2 | 2.3899 | 3.75*** |
0.879
Persistence5d
Half-lifeμ
ILLIQ-SMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.9665 | 3.43*** |
α ARCH Response to squared shocks | 0.0823 | 3.26*** |
β GARCH Volatility persistence | 0.7963 | 9.92*** |
Spline Coefficients
K=2
| γ1 | -1.1497 | -2.69*** |
| γ2 | 2.3899 | 3.75*** |
Persistence:
0.879
Half-life:
5 days
Other Cnooc Ltd Analyses
Other Spline ILLIQ Analyses on International Equities