Resumen: The study aimed to explore the role of information technology in raising the efficiency of the Amman Stock Exchange, mediated by the behavior of the stock prices. The study chose a sample consisting of 24 companies that are listed on the Amman Stock Exchange. The study used the average of the abnormal return of the stocks gained by companies through information technology applications. The study carried out a multiple regression analysis to explore the degree to which the independent variable affected the dependent one. The study results found that the abnormal return of the stocks gained by companies through information technology applications is low. The study also found that there is a significant relationship between using IT applications and the efficiency of the Amman Stock Exchange, mediated by the behavior of the stock prices. Therefore, the study recommends expanding the scope of using IT in emerging stock markets, including the Amman Stock Exchange, with the aim of raising the operational efficiency of such markets. Idioma: Inglés DOI: 10.37394/23207.2023.20.101 Año: 2023 Publicado en: WSEAS Transactions on Business and Economics 20 (2023), 1129-1143 ISSN: 1109-9526 Factor impacto CITESCORE: 1.5 - Economics and Econometrics (Q3) - Organizational Behavior and Human Resource Management (Q3) - Marketing (Q3) - Strategy and Management (Q3)