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Community detection and portfolio optimization

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arxiv 2112.13383 v1 pith:NRR4GNYI submitted 2021-12-26 q-fin.PM

Longfeng Zhao , Chao Wang , Gang-Jin Wang , H. Eugene Stanley , Lin Chen This is my paper · ORCID
classification q-fin.PM
keywords communitydetectioncomplexmethodsoptimizationportfolioportfoliossystems
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Community detection methods can be used to explore the structure of complex systems. The well-known modular configurations in complex financial systems indicate the existence of community structures. Here we analyze the community properties of correlation-based networks in worldwide stock markets and use community information to construct portfolios. Portfolios constructed using community detection methods perform well. Our results can be used as new portfolio optimization and risk management tools.

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