Adaptive online portfolio strategy based on exponential gradient updates

Yong Zhang (), Hong Lin (), Lina Zheng () and Xingyu Yang ()
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Yong Zhang: Guangdong University of Technology
Hong Lin: Guangdong University of Technology
Lina Zheng: Guangdong University of Technology
Xingyu Yang: Guangdong University of Technology

Journal of Combinatorial Optimization, 2022, vol. 43, issue 3, No 9, 672-696

Abstract: Abstract Based on the momentum principle and adaptive learning mechanism, we design online portfolio selection strategies, which are suitable for nonstationary financial market. Firstly, we propose a Moving-window-based Adaptive Exponential Gradient (MAEG) strategy, which updates the learning rate of the EG algorithm by maximizing the recent cumulative return using the price data in a fixed length moving window. Secondly, we consider a special case where all-historical price data is used to design another strategy named Adaptive Exponential Gradient (AEG). Finally, we conduct an extensive numerical analysis using real price data and the empirical results show that the performance of the proposed strategies is steadily superior to some online strategies. In addition, MAEG and AEG are able to withstand certain transaction costs, which further supports their practical applicability in trading applications.

Keywords: Online portfolio selection; Adaptive strategy; Exponential gradient; Learning rate; Quantitative finance; 91G10 (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (3)

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DOI: 10.1007/s10878-021-00800-7

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