Preprint Article Version 1 This version is not peer-reviewed

Learning A-Share Stock Recommendation From Stock Graph and Historical Price Simultaneously

Version 1 : Received: 3 October 2024 / Approved: 3 October 2024 / Online: 4 October 2024 (00:10:25 CEST)

How to cite: Chen, H.; Wang, T.; Konpang, J.; Sirikham, A. Learning A-Share Stock Recommendation From Stock Graph and Historical Price Simultaneously. Preprints 2024, 2024100269. https://doi.org/10.20944/preprints202410.0269.v1 Chen, H.; Wang, T.; Konpang, J.; Sirikham, A. Learning A-Share Stock Recommendation From Stock Graph and Historical Price Simultaneously. Preprints 2024, 2024100269. https://doi.org/10.20944/preprints202410.0269.v1

Abstract

The Chinese stock market, marked by rapid growth and significant volatility, presents unique challenges for investors and analysts. A-share stocks, traded on the Shanghai and Shenzhen exchanges, are crucial to China’s financial system and offer opportunities for both domestic and international investors. Accurate stock recommendation tools are vital for informed decision-making, especially given the ongoing regulatory changes and economic reforms in China. Current stock recommendation methods often fall short, as they typically fail to capture the complex inter-company relationships and rely heavily on financial reports, neglecting the potential of unlabeled data and historical price trends. In response, we propose a novel approach that combines graph-based structures with historical price data to develop self-learned stock embeddings for A-share recommendations. Our method leverages self-supervised learning, bypassing the need for human-generated labels and autonomously uncovering latent relationships and patterns within the data. This dual-input strategy enhances the understanding of market dynamics, leading to more accurate stock predictions. Our contributions include a novel framework for label-free stock recommendations with modeling stock connections and pricing information, and empirical evidence demonstrating the robustness and adaptability of our approach in the volatile Chinese stock market.

Keywords

Stock Recommendation; Graph Neural Network; Gated Recurrent Network; Self-supervised Learning

Subject

Computer Science and Mathematics, Artificial Intelligence and Machine Learning

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