Ar Rasyid, M. A. F. (2025). Post-Event Analysis of The Influence of President Donald Trump’s Tweet Sentiment on the Abnormal Returns, Trading Volume Activity, and Volatility of S&P 500 Companies. International Journal of Economics Development Research (IJEDR), 6(6), 3106–3129. https://doi.org/10.37385/ijedr.v6i6.8273