Online reports, according to foreign media reports, major U.S. stock indexes hit their biggest weekly decline since March 2020, after Trump announced a tariff plan that exceeded expectations, raising concerns about global economic growth. "The reason why the stock market fell sharply today is that there is a real lack of buyers," said Carol Schleif, chief market strategist at BMO Private Wealth. People are already waiting to see how the initial (trade) negotiations/retaliation progress and don't know how to assess how much decline is "enough." The Dow is currently down 14.9% from its record close, and the S & P 500 is down 17.4% from its record close. The Nasdaq index has fallen 22.7% from the closing record set on December 16 last year, confirming that it has entered a bear market. U.S. stocks lost more than US$3 trillion in market value across the city today. On Friday, Federal Reserve Chairman Powell also gave no short-term answers on how tariffs would affect monetary policy, saying: "We face a highly uncertain outlook, with rising risks to unemployment and inflation." In addition, other stock markets in the Americas were also dragged down. Canada's Toronto Stock Index confirmed that it had entered a correction, closing down more than 10% from the all-time high set on January 30. Argentina's main stock index fell 7.4% at the preliminary close. Major stock indexes in Mexico and Brazil fell more than 5% and 3%, respectively.