Can Large Language Models Beat Wall Street? Unveiling the Potential of AI in Stock Selection

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Can Large Language Models Beat Wall Street? Unveiling the Potential of AI in Stock Selection

Georgios Fatouros
Konstantinos Metaxas
John Soldatos
Dimosthenis Kyriazis
Published on 1/8/2024
Equities
Stocks
United States (US)
AI
LLM
Stock picking
Machine learning
Fundamental analysis
Sentiment
Alternative data

This research paper introduces MarketSenseAI, an innovative framework that leverages GPT-4's advanced reasoning capabilities for stock selection in financial markets. The framework integrates Chain of Thought and In-Context Learning techniques to analyze diverse data sources including market trends, news, fundamentals, and macroeconomic factors, effectively emulating expert investment decision-making. A distinctive aspect of this work is the dual use of GPT-4 both as a predictive mechanism and as a signal evaluator, with findings revealing that AI-generated explanations significantly enhance signal accuracy, reliability, and acceptance.

Through empirical testing on the competitive S&P 100 stocks over a 15-month period, MarketSenseAI demonstrated exceptional performance, delivering excess alpha of 10% to 30% and achieving a cumulative return of up to 72% while maintaining a risk profile comparable to the broader market. The paper's findings highlight the transformative potential of Large Language Models in financial decision-making, marking a significant advancement in integrating generative AI into financial analytics and investment strategies. The research underscores how AI-generated explanations contribute to both performance outcomes and practical acceptance of automated investment signals.

Highlights

  • 1Introduces MarketSenseAI, a novel framework using GPT-4 for stock selection
  • 2Integrates Chain of Thought and In-Context Learning to analyze diverse financial data
  • 3Employs GPT-4 both as a predictive mechanism and signal evaluator
  • 4Demonstrates exceptional performance with excess alpha of 10-30% and up to 72% cumulative return
  • 5Highlights the transformative potential of LLMs in financial decision-making

Methods

  • M
    GPT-4-based framework with advanced reasoning capabilities
  • M
    Chain of Thought and In-Context Learning techniques
  • M
    Analysis of market trends, news, fundamentals, and macroeconomic factors
  • M
    Empirical testing on S&P 100 stocks over 15-month period

Results

  • R
    MarketSenseAI delivered excess alpha of 10% to 30%
  • R
    Achieved cumulative return of up to 72% over the testing period
  • R
    Maintained risk profile comparable to the broader market
  • R
    AI-generated explanations significantly improved signal accuracy, reliability and acceptance
  • R
    Framework generated actionable and interpretable investment signals
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