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Helleniq Energy Holdings Sa Spline ILLIQ Liquidity Analysis

Illiquidity prediction for Thursday, October 29th, 2026

1 Day

3,096.96

increased by 5.01

1 Week

3,221.83

increased by 129.88

1 Month

2,589.83

decreased by 502.12

Analysis last updated: Wednesday, October 28, 2026 at 07:08 PM UTC

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Date Range:

from

10/27/2024

to

10/27/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Helleniq Energy Holdings Sa ILLIQ-SMEM

News Impact Curve

How returns affect tomorrow's illiquidity

Illiquidity Forecast

How illiquidity evolves over time

Parameter Estimates

Jun 29, 1998 to Oct 27, 2026

Model Insight

With persistence 0.995, illiquidity shocks have a half-life of 129 trading days (~0.5 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 0.995, shock half-life ~129 days
ParamValuet-stat
ωconst1.2074
6.01***
αARCH0.1119
17.15***
βGARCH0.8828
131.19***
∑γi Spline Coefficients
K=1
γ1-0.0051
-2.77***

0.995

Persistence

129d

Half-life
μ

ILLIQ-SMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.2074
6.01***
α

ARCH

Response to squared shocks

0.1119
17.15***
β

GARCH

Volatility persistence

0.8828
131.19***
∑γi Spline Coefficients
K=1
γ1-0.0051
-2.77***

Persistence:

0.995

Half-life:

129 days