This research investigates the impact of financial Application Programming Interfaces (APIs) on foreign investors in the stock market. Traditionally, accessing financial information requires a complex and extensive manual process that hinders foreign participation. The advent of APIs has simplified retrieval and analysis of corporate data, lowering entry barriers and narrowing the information asymmetry between domestic and foreign investors. Leveraging the introduction of OpenDART in South Korea, we analyze trading volume, net-buying trends, and stock returns to assess the differential effects on investors. Our findings reveal that financial APIs enhance foreign investors’ trade quality compared to domestic investors, particularly for opaque stocks with higher information asymmetry. These results highlight the role of technological innovation in mitigating information asymmetry and fostering cross-border investment.
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Abstract Introduction Literature Review Role of Electronic Disclosure Systems in Stock Market Impact of Financial Technologies on Investors Information Asymmetry and Cross-Border Investment Challenges Data and Variables Empirical Analysis Conclusion References