指数跌0.24%报3342.01点，深证成指跌

Market Performance - The Shanghai Composite Index fell by 0.24% to 3342.01 points, while the Shenzhen Component Index dropped by 1.4%[1] - The Hang Seng Index decreased by 1.52% to 22849.81 points, with the Hang Seng Tech Index down by 2.09%[1] - The total market turnover in Hong Kong was HKD 2894.93 billion[1] Economic Impact of Tariffs - Trump announced a baseline tariff of 10% on most U.S. imports, effective immediately, with higher tariffs on certain countries starting April 9[7] - China retaliated by imposing a 34% tariff on all U.S. imports starting April 10, matching the U.S. tariff rate[11] - Analysts estimate that the new tariffs could reduce China's exports to the U.S. by approximately 80%[11] TikTok Negotiations - TikTok received a 75-day extension for negotiations to finalize a deal to sell its U.S. operations, which was previously close to completion[7] - The deal fell through due to heightened tensions from the new tariffs imposed by the U.S.[11] Federal Reserve's Stance - Federal Reserve Chairman Jerome Powell warned that the economic impact of the new tariffs could exceed expectations, potentially leading to higher inflation and slower economic growth[11] - Powell indicated that the Fed would not rush to adjust interest rates due to the uncertainty surrounding government policies[11]