Historically, Trump's statements on tariffs have led to increased market volatility, particularly in industries heavily reliant on international trade. The mention of countering other countries' tariffs with swift and nimble responses may lead to fears of escalating trade wars, negatively impacting stock prices of companies with significant exposure to global markets. This could affect the stock market, particularly in sectors such as manufacturing, technology, and agriculture, which are heavily influenced by trade policies. Furthermore, the potential for retaliatory measures from other countries may lead to decreased investor confidence, causing a bearish sentiment in the stock market. The lack of specificity regarding which countries or industries would be targeted by these tariffs adds to the uncertainty, potentially leading to increased market fluctuations.