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V-Lab
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

Date Range:

from

to

6M ·

1Y ·

2Y ·

All

graph of Cnooc Ltd ILLIQ-SMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Jul 26, 2023 to Sep 18, 2026

Model 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
ParamValuet-stat
ωconst0.9665
3.43***
αARCH0.0823
3.26***
βGARCH0.7963
9.92***
γi Spline Coefficients
K=2
γ1-1.1497
-2.69***
γ22.3899
3.75***

0.879

Persistence

5d

Half-life
μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-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***
γi Spline Coefficients
K=2
γ1-1.1497
-2.69***
γ22.3899
3.75***

Persistence:

0.879

Half-life:

5 days