美国股债汇三杀，纳指跌超2%，芯片股、中概股普跌，晶科能源跌超12%，黄金白银再创新高

Market Overview - The US stock market experienced a significant decline, with the S&P 500 and Nasdaq dropping over 2%, and the Dow Jones falling by 870 points, a decrease of 1.76% [1] - Major technology stocks also saw substantial losses, with Nvidia and Tesla down over 4%, and Apple and Amazon falling more than 3% [2][3] - The Chicago Board Options Exchange Volatility Index (VIX), known as the "fear index," surged above 20, indicating increased market volatility [1] Sector Performance - Bank stocks fell across the board, with Citigroup down over 4% and JPMorgan Chase and Morgan Stanley dropping more than 3% [4] - Chinese concept stocks mostly declined, with JinkoSolar down 12.5% and Century Internet falling over 10% [4][5] - Semiconductor stocks also faced a downturn, with Broadcom and Skyworks Solutions dropping over 5% [2] Commodity and Currency Movements - Gold and silver prices reached new highs, with spot gold exceeding $4,763 per ounce and silver surpassing $94 per ounce [8][9] - The US dollar index fell by 0.41%, marking its worst two-day performance in about a month [5] - The US Treasury yields rose to their highest levels in over four months, with the 10-year yield reaching 4.292% [6] Cryptocurrency Market - The cryptocurrency market saw a widespread decline, with Bitcoin dropping below $90,000 and Ethereum falling below $3,000 [10] - Approximately 163,000 traders were liquidated in the market downturn [10] Geopolitical Context - US President Trump reiterated his stance on Greenland, indicating a potential for aggressive policies regarding trade and tariffs, which may impact market sentiment [11]