Reaksi Saham Perusahaan LQ-45 yang Terdaftar di BEI terhadap Peristiwa Peluncuran Badan Pengelola Investasi Daya Anagata Nusantara (BPI Danantara)

This research analyzes the differences in abnormal return and trading volume activity before and after the launch event of the Badan Pengelola Investasi Daya Anagata Nusantara (BPI Danantara) on the LQ-45 index stocks in the Indonesia Stock Exchange. The data analysis method used is an event study with an observation period of 11 days. Statistical testing was conducted using the SPSS application to compare abnormal return and trading volume activity (TVA) before and after the event. The results show that there is no significant difference in abnormal return before and after the launch of BPI Danantara. However, there is a significant difference in trading volume activity before and after the event.