A hybrid combinatorial approach to a two-stage stochastic portfolio optimization model with uncertain asset prices

Cui, Tianxiang and Bai, Ruibin and Ding, Shusheng and Parkes, Andrew J. and Qu, Rong and He, Fang and Li, Jingpeng (2020) A hybrid combinatorial approach to a two-stage stochastic portfolio optimization model with uncertain asset prices. Soft Computing, 24 (4). pp. 2809-2831. ISSN 1432-7643

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Abstract

Portfolio optimization is one of the most important problems in the finance field. The traditional Markowitz mean-variance model is often unrealistic since it relies on the perfect market information. In this work, we propose a two-stage stochastic portfolio optimization model with a comprehensive set of real-world trading constraints to address this issue. Our model incorporates the market uncertainty in terms of future asset price scenarios based on asset return distributions stemming from the real market data. Compared with existing models, our model is more reliable since it encompasses real-world trading constraints and it adopts CVaR as the risk measure. Furthermore, our model is more practical because it could help investors to design their future investment strategies based on their future asset price expectations. In order to solve the proposed stochastic model, we develop a hybrid combinatorial approach, which integrates a hybrid algorithm and a linear programming (LP) solver for the problem with a large number of scenarios. The comparison of the computational results obtained with three different metaheuristic algorithms and with our hybrid approach shows the effectiveness of the latter. The superiority of our model is mainly embedded in solution quality. The results demonstrate that our model is capable of solving complex portfolio optimization problems with tremendous scenarios while maintaining high solution quality in a reasonable amount of time and it has outstanding practical investment implications, such as effective portfolio constructions.

Item Type: Article
Keywords: Hybrid Algorithm; Combinatorial Approach; Stochastic Programming; Population-based Incremental Learning; Local Search; Learning Inheritance; Portfolio Optimization Problem
Schools/Departments: University of Nottingham Ningbo China > Faculty of Science and Engineering > School of Computer Science
Identification Number: https://doi.org/10.1007/s00500-019-04517-y
Depositing User: Wu, Cocoa
Date Deposited: 28 Apr 2020 02:14
Last Modified: 28 Apr 2020 02:14
URI: http://eprints.nottingham.ac.uk/id/eprint/60468

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