USA Tariffs Effect: Machine Learning Insights into the Stock Market

The imposition of tariffs by President Trump during his second term had far-reaching consequences for global markets, including Australia. This study investigates how both the announcement and subsequent implementation of these tariffs, specifically on 02-Apr-2025, affected the Australian stock market, focusing on the S\&P/ASX 200 index over the period from 21-Jan-2025 to 25-Jul-2025. To accurately capture the significance and behavior of market fluctuations, the exploratory data analysis (EDA) techniques are applied. Furthermore, the impact of tariffs on stock performance is evaluated using machine learning-based regression models. A comparative assessment of these models is conducted to determine their predictive accuracy and robustness in capturing tariff-related market responses.