纳指深夜跌超500点，科技股重挫，闪迪跌超11%，小马智行跌超14%

Market Overview - Major stock markets in Europe and the US experienced collective declines, with the Nasdaq dropping over 2% and the S&P 500 falling more than 1.7%, breaking below 6500 points, marking a new low since early September of the previous year [1] - The tech sector faced significant losses, with the US Tech Giants Index falling nearly 3%, led by Meta's nearly 8% drop and Google's over 3% decline [1] Company Performance - Nvidia fell over 4%, Tesla dropped more than 3%, Amazon decreased nearly 2%, and Microsoft declined over 1%, while Apple saw a slight increase of 0.11% [1] - Semiconductor stocks suffered a collective downturn, with the Philadelphia Semiconductor Index dropping nearly 5%. Notable declines included SanDisk down over 11%, Lam Research and Applied Materials down over 8%, and Micron Technology down nearly 7%, marking a 23% retreat from its historical high since March 18 [1][2] Chinese Stocks - Chinese stocks listed in the US also saw widespread declines, with the Nasdaq Golden Dragon China Index falling over 2.5%. Individual stocks such as Pony.ai dropped over 14%, XPeng fell over 6%, and Baidu and Bilibili decreased nearly 5% [2] Commodity Market - In the commodities market, international precious metals saw gains, with spot gold rising 0.51% to recover to $4400 per ounce, and silver increasing 0.82% to $68.49 per ounce [3] Cryptocurrency Market - The cryptocurrency market experienced a significant downturn, with Bitcoin dropping 3.38% below the $70,000 mark and Ethereum declining nearly 5%. Over 100,000 individuals faced liquidation, totaling $331 million in losses [4] Economic Context - The geopolitical situation between the US and Iran remains tense, with President Trump asserting that Iran is seeking negotiations. He announced a delay in airstrikes on Iranian energy facilities until April 6 [4] - Hawkish comments from Federal Reserve officials have strengthened expectations for a delay in interest rate cuts, with indications that the reduction of the Fed's balance sheet may take several years [4]