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SES SA Spline ILLIQ Liquidity Analysis

Illiquidity prediction for Tuesday, September 29th, 2026

1 Day

5,306.45

increased by 420.90

1 Week

4,945.53

increased by 59.98

1 Month

4,556.65

decreased by 328.90

Analysis last updated: Tuesday, September 29, 2026 at 06:35 PM UTC

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Date Range:

from

09/28/2024

to

09/28/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of SES SA ILLIQ-SMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

May 5, 2004 to Sep 25, 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 68 trading days.

μ

ILLIQ-SMEM Model

Tap to view equation

Time-varying baseline: illiquidity reverts to a slowly-shifting spline trend
ParamValuet-stat
ωconst1.5873
9.30***
αARCH0.0556
9.85***
βGARCH0.9343
137.72***
∑γi Spline Coefficients
K=1
γ10.0093
7.65***

0.990

Persistence

68d

Half-life
μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.5873
9.30***
α

ARCH

Response to squared shocks

0.0556
9.85***
β

GARCH

Volatility persistence

0.9343
137.72***
∑γi Spline Coefficients
K=1
γ10.0093
7.65***

Persistence:

0.990

Half-life:

68 days