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Ctt Correios De Portugal Sa Spline ILLIQ Liquidity Analysis

Illiquidity prediction for Wednesday, October 14th, 2026

1 Day

5,226.55

decreased by 51.05

1 Week

5,033.28

decreased by 244.32

1 Month

4,319.17

decreased by 958.43

Analysis last updated: Wednesday, October 14, 2026 at 09:27 PM UTC

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Date Range:

from

10/13/2024

to

10/13/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Ctt Correios De Portugal Sa ILLIQ-SMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Dec 5, 2013 to Oct 9, 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 60 trading days.

μ

ILLIQ-SMEM Model

Tap to view equation

Time-varying baseline: illiquidity reverts to a slowly-shifting spline trend
ParamValuet-stat
ωconst1.0571
7.27***
αARCH0.0839
9.51***
βGARCH0.9046
91.06***
∑γi Spline Coefficients
K=1
γ1-0.0175
-3.41***

0.989

Persistence

60d

Half-life
μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.0571
7.27***
α

ARCH

Response to squared shocks

0.0839
9.51***
β

GARCH

Volatility persistence

0.9046
91.06***
∑γi Spline Coefficients
K=1
γ1-0.0175
-3.41***

Persistence:

0.989

Half-life:

60 days