Signal inference in financial stock return correlations through phase-ordering kinetics in the quenched regime

Ixandra Achitouv; Vincent Lahoche; Dine Ousmane Samary

doi:10.1371/journal.pone.0334436

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Open Access

Peer-reviewed

Research Article

Signal inference in financial stock return correlations through phase-ordering kinetics in the quenched regime

Ixandra Achitouv,

Roles Conceptualization, Data curation, Investigation, Methodology, Validation, Visualization, Writing – original draft

Affiliation Institut des Systèmes Complexes ISC-PIF , CNRS, Paris, France
⨯
Vincent Lahoche,

Roles Conceptualization, Formal analysis, Investigation, Methodology, Supervision, Validation, Writing – original draft

Affiliation Université Paris Saclay, Cea, Gif-sur-Yvette, France
⨯
Dine Ousmane Samary

Roles Conceptualization, Formal analysis, Investigation, Methodology, Project administration, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

* E-mail: ousmanesamarydine@yahoo.fr

Affiliations Université Paris Saclay, Cea, Gif-sur-Yvette, France, Faculté des Sciences et Techniques (ICMPA-UNESCO Chair) Université d’Abomey-Calavi, Bénin

https://orcid.org/0000-0001-8666-5481

⨯

Signal inference in financial stock return correlations through phase-ordering kinetics in the quenched regime

Ixandra Achitouv,
Vincent Lahoche,
Dine Ousmane Samary

Published: October 31, 2025
https://doi.org/10.1371/journal.pone.0334436

About the Authors

Ixandra Achitouv

Roles Conceptualization, Data curation, Investigation, Methodology, Validation, Visualization, Writing – original draft

Affiliation Institut des Systèmes Complexes ISC-PIF , CNRS, Paris, France

Vincent Lahoche

Roles Conceptualization, Formal analysis, Investigation, Methodology, Supervision, Validation, Writing – original draft

Affiliation Université Paris Saclay, Cea, Gif-sur-Yvette, France

Dine Ousmane Samary

Roles Conceptualization, Formal analysis, Investigation, Methodology, Project administration, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

* E-mail: ousmanesamarydine@yahoo.fr

Affiliations Université Paris Saclay, Cea, Gif-sur-Yvette, France, Faculté des Sciences et Techniques (ICMPA-UNESCO Chair) Université d’Abomey-Calavi, Bénin

https://orcid.org/0000-0001-8666-5481

Competing Interests

The authors have declared that no competing interests exist.

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Eigenvalues
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Finance
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Eigenvectors
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Extracellular matrix
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Entropy
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Signal to noise ratio
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Statistical mechanics
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