U.S. stock markets experienced a notable decline on February 21, 2025, with the Dow Jones Industrial Average (DJIA) dropping as much as 800 points during the trading session. The decline was primarily driven by concerns over the U.S. economy, which have intensified due to weak economic data. UnitedHealth Group, a major health insurance provider, saw its stock plummet more than 7% amid reports that the U.S. Department of Justice is investigating the company. This contributed significantly to the overall downturn in the healthcare sector, which was the largest sector decline in the market. The yen strengthened against the dollar, reaching the 148 range, marking the strongest yen in over two months, as investors reacted to the economic uncertainties. By the end of the trading day, the DJIA closed down 748 points, reflecting widespread selling across various sectors as fears of economic slowdown and persistent inflation loomed over the market.