@phdthesis{digilib74085,
           month = {September},
           title = {STUDI PERISTIWA PADA INVESTASI APPLE DI INDONESIA DI PERUSAHAAN SEKTOR PERTAMBANGAN},
          school = {UIN SUNAN KALIJAGA YOGYAKARTA},
          author = {NIM.: 21108030041 Anais Pavitasari Eka Latifa},
            year = {2025},
            note = {Dr. Darmawan, S.Pd.,MAB},
        keywords = {Event Study, Abnormal Return, Investasi Apple, Pasar Modal, Efisiensi Pasar},
             url = {https://digilib.uin-suka.ac.id/id/eprint/74085/},
        abstract = {This study analyzes abnormal stock returns of mining companies in Indonesia related to Apple Inc.'s investment in 2024. The event study method used is a quantitative approach, utilizing daily stock price data and the Jakarta Composite Index (JCI) in the periods before and after the announcement. The sample consists of ten large-cap mining companies listed on the Indonesia Stock Exchange. The results show significant abnormal returns around the event, indicating a market response to the announcement. This finding supports the semi-strong form of market efficiency theory, where stock prices reflect relevant public information.}
}