Portfolio optimization with MOPSO-Shrinkage hybrid model

This paper introduces a novel framework for portfolio optimization that integrates Multi-Objective Particle Swarm Optimization (MOPSO) with shrinkage covariance estimators, referred to as the MOPSO-Shrinkage hybrid model. The main contribution of this study lies in combining the adaptive search capa...

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Main Authors: Minh Tran, Nhat M. Nguyen
Format: Article
Language:English
Published: Elsevier 2025-06-01
Series:Results in Control and Optimization
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Online Access:http://www.sciencedirect.com/science/article/pii/S2666720725000396
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author Minh Tran
Nhat M. Nguyen
author_facet Minh Tran
Nhat M. Nguyen
author_sort Minh Tran
collection DOAJ
description This paper introduces a novel framework for portfolio optimization that integrates Multi-Objective Particle Swarm Optimization (MOPSO) with shrinkage covariance estimators, referred to as the MOPSO-Shrinkage hybrid model. The main contribution of this study lies in combining the adaptive search capabilities of evolutionary algorithms with robust covariance estimation techniques to enhance portfolio allocation in mature financial markets. Unlike traditional shrinkage covariance models, which struggle in highly dynamic environments, our hybrid model optimally selects stocks and improves risk-adjusted returns. Empirical analysis on US stock market data from 2013 to 2023 demonstrates that MOPSO-Shrinkage models consistently outperform traditional shrinkage models, achieving higher returns, lower volatility, and superior Sharpe ratios. Among the hybrid models, MOPSO-SSIM exhibits the best performance, with an average annual return of 18.86% and a Sharpe ratio of 1.27, while significantly reducing portfolio risk. Rigorous statistical tests confirm the robustness of the model, showing that MOPSO-Shrinkage significantly outperforms traditional methods. These findings suggest that the proposed approach is well-suited for traders seeking higher risk-adjusted returns and portfolio stability in volatile markets.
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spelling doaj-art-4d8215cd75c542c4b0a258d02d6e6b8b2025-08-20T03:30:39ZengElsevierResults in Control and Optimization2666-72072025-06-011910055310.1016/j.rico.2025.100553Portfolio optimization with MOPSO-Shrinkage hybrid modelMinh Tran0Nhat M. Nguyen1Ho Chi Minh University of Banking, 36 Ton That Dam street, Nguyen Thai Binh ward, district 1, Ho Chi Minh, 700000, Viet NamCorresponding author.; Ho Chi Minh University of Banking, 36 Ton That Dam street, Nguyen Thai Binh ward, district 1, Ho Chi Minh, 700000, Viet NamThis paper introduces a novel framework for portfolio optimization that integrates Multi-Objective Particle Swarm Optimization (MOPSO) with shrinkage covariance estimators, referred to as the MOPSO-Shrinkage hybrid model. The main contribution of this study lies in combining the adaptive search capabilities of evolutionary algorithms with robust covariance estimation techniques to enhance portfolio allocation in mature financial markets. Unlike traditional shrinkage covariance models, which struggle in highly dynamic environments, our hybrid model optimally selects stocks and improves risk-adjusted returns. Empirical analysis on US stock market data from 2013 to 2023 demonstrates that MOPSO-Shrinkage models consistently outperform traditional shrinkage models, achieving higher returns, lower volatility, and superior Sharpe ratios. Among the hybrid models, MOPSO-SSIM exhibits the best performance, with an average annual return of 18.86% and a Sharpe ratio of 1.27, while significantly reducing portfolio risk. Rigorous statistical tests confirm the robustness of the model, showing that MOPSO-Shrinkage significantly outperforms traditional methods. These findings suggest that the proposed approach is well-suited for traders seeking higher risk-adjusted returns and portfolio stability in volatile markets.http://www.sciencedirect.com/science/article/pii/S2666720725000396Multi-objective functionParticle swarm optimizationShrinkage estimatorStock selectionPortfolio allocation
spellingShingle Minh Tran
Nhat M. Nguyen
Portfolio optimization with MOPSO-Shrinkage hybrid model
Results in Control and Optimization
Multi-objective function
Particle swarm optimization
Shrinkage estimator
Stock selection
Portfolio allocation
title Portfolio optimization with MOPSO-Shrinkage hybrid model
title_full Portfolio optimization with MOPSO-Shrinkage hybrid model
title_fullStr Portfolio optimization with MOPSO-Shrinkage hybrid model
title_full_unstemmed Portfolio optimization with MOPSO-Shrinkage hybrid model
title_short Portfolio optimization with MOPSO-Shrinkage hybrid model
title_sort portfolio optimization with mopso shrinkage hybrid model
topic Multi-objective function
Particle swarm optimization
Shrinkage estimator
Stock selection
Portfolio allocation
url http://www.sciencedirect.com/science/article/pii/S2666720725000396
work_keys_str_mv AT minhtran portfoliooptimizationwithmopsoshrinkagehybridmodel
AT nhatmnguyen portfoliooptimizationwithmopsoshrinkagehybridmodel