PreprintCited by 26Stock Market Forecasting MethodsFinancial Markets and Investment StrategiesFinancial Analysis and Corporate Governance

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

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Fatouros, Georgios, Metaxas, Konstantinos, Soldatos, John, Kyriazis, Dimosthenis·2024·SSRN Electronic Journal

Abstract

This paper introduces MarketSenseAI, an innovative framework leveraging GPT-4's advanced reasoning for selecting stocks in financial markets. By integrating Chain of Thought and In-Context Learning, MarketSenseAI analyzes diverse data sources, including market trends, news, fundamentals, and macroeconomic factors, to emulate expert investment decision-making. The development, implementation, and validation of the framework are elaborately discussed, underscoring its capability to generate actionable and interpretable investment signals. A notable feature of this work is employing GPT-4 both as a predictive mechanism and signal evaluator, revealing the significant impact of the AI-generated explanations on 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% over the period, while maintaining a risk profile comparable to the broader market. Our findings highlight the transformative potential of Large Language Models in financial decision-making, marking a significant leap in integrating generative AI into financial analytics and investment strategies.

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Crossref · 10.2139/ssrn.4693849

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33 of 33 references verified0 citation errors · 0 not checkable

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  • In [10] and [56], win rate is used to measure proportion of profitable trades out of all executed trades.

    “Meanwhile, [10] and [56] use the win rate to measure the proportion of profitable trades out of all executed trades.”

    From Large Language Model Agent in Financial Trading: A Survey (2026) · cites this paper as [10]

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Authors
Fatouros, G., Metaxas, K., Soldatos, J., & Kyriazis, D.
Affiliations
University of Piraeus (GR)
Corresponding author
Fatouros, Georgios
Venue
SSRN Electronic Journal
Publisher
Elsevier BV
Published
2024
ISSN
1556-5068 (ISSN-L)
OpenAlex
W4391286169
Cited by
25
References
31
Citations by year
2026: 8 · 2025: 10 · 2024: 7
Type
posted content
Language
en
Open access
Locations
SSRN Electronic Journal (acceptedVersion)
Topics
  • Social Sciences › Decision Sciences › Management Science and Operations Research › Stock Market Forecasting Methods
  • Social Sciences › Economics, Econometrics and Finance › Finance › Financial Markets and Investment Strategies
  • Social Sciences › Business, Management and Accounting › Accounting › Financial Analysis and Corporate Governance
Keywords
large language models, stock selection, GPT-4, chain-of-thought prompting, in-context learning, investment decision-making, investment signals, S&P 100 stocks, AI-generated explanations, financial analytics

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