Game-Theoretic Modeling of Heterogeneous Investor Interactions for Stock Price Forecasting

• URL: http://arxiv.org/abs/2605.23953v1
• Date: Mon, 11 May 2026 03:24:07 GMT
• Title: Game-Theoretic Modeling of Heterogeneous Investor Interactions for Stock Price Forecasting
• Abstract summary: We propose a novel game-theoretic modeling method that captures heterogeneous investor interactions for stock price forecasting.<n>Our method effectively outperforms state-of-the-art stock price forecasting methods.
• Score: 41.72855212921341
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Accurate stock price forecasting has consistently remained a pivotal yet challenging FinTech task that underpins quantitative trading and investment decision making. Recent efforts have been dedicated to modeling various complex relationships among stocks in the stock market toward more reliable stock price forecasting.These methods depend heavily on strong static prior assumptions by modeling either temporal dependencies within individual stocks or spatial dependencies across different stocks based on predefined structures, while the complex market dynamics that drive stock price movements remain unexplored. To alleviate this issue, we propose a novel game-theoretic modeling method that captures heterogeneous investor interactions for stock price forecasting. The core idea is to embed game-theoretic mechanisms into the heterogeneous graph structure to finely model the dynamic strategic interactions among heterogeneous investors with respect to target stocks. Additionally, temporal positional encoding is adopted to reflect the differentiated influences of each game event at different time steps within the time window on future stock price movements. Leveraging heterogeneous graph networks, we proxy the intricate dynamics of the stock market through investor games and enable real-time information propagation and node updates among all nodes. Extensive experiments conducted on two real-world benchmark dataset demonstrate that our method effectively outperforms state-of-the-art stock price forecasting methods.

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