This study analyzes the impact of the 2024 Indonesian Presidential Inauguration on the IDX ESG Leaders index (IDXESGL) by evaluating changes in market capitalization, trading volume activity, and abnormal returns, as well as its implications for sustainable economy and the 8th SDGs. This research departs from the importance of a sustainable economy, where political factors, especially presidential inauguration, can affect the stock market, especially the ESG-based IDXESGL index (Environmental, Social, and Governance). The novelty of this research lies in analyzing the impact of politics on IDXESGL, which has not been widely studied, as well as its relation to signaling theory. xThis study analyzed Indonesia Stock Exchange data for 14 trading days and tested differences using the Wilcoxon Signed Rank Test. The results show a significant decrease in market capitalization and abnormal return, as well as an insignificant decrease in trading volume activity, which reflects the negative market reaction to political uncertainty, so that adaptive strategies are needed from investors, government.
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