US stock market dropped again on March 21, 2025, as concerns over Trump’s April 2 tariffs fueled investor anxiety. The Dow fell 0.6%, while the S&P 500 and Nasdaq slipped 0.5%, marking a five-week losing streak for the S&P 500. Companies like FedEx and Nike reported disappointing outlooks due to weakening demand and uncertainty. Market volatility was heightened by quadruple witching, where $4.7 trillion worth of options expired. As the deadline nears, investors await clearer policy direction.