今夜！美元，突然崩了！

Group 1: Currency Market Dynamics - The US dollar index experienced a significant drop, reaching a near four-year low, influenced by Japan's finance minister reaffirming US-Japan coordination, which led to a short-term rise in the yen [4][5] - The dollar has weakened for four consecutive trading days, reflecting investor caution due to the unpredictability of US policies, including President Trump's threats regarding Greenland [6][7] - Analysts suggest that structural issues such as declining confidence in US trade and security policies, political polarization, and concerns over the Federal Reserve's independence may further depress the dollar [6][7] Group 2: US Stock Market Performance - The US stock market showed a stark contrast, with the Dow Jones Industrial Average dropping nearly 500 points, while the Nasdaq index rose approximately 1% and the S&P 500 increased by about 0.5% [9][10] - The decline in the Dow was primarily driven by a nearly 20% drop in UnitedHealth Group, which projected its first annual revenue contraction in over 30 years, raising concerns about the impact of proposed federal Medicare payment rate adjustments [10] - In contrast, technology stocks surged, with Micron Technology leading the gains after announcing a $24 billion investment in Singapore to expand manufacturing capabilities, expected to create around 1,600 jobs [11][12][13] Group 3: Precious Metals Market - Both gold and silver prices in the London spot market saw significant increases, with gold rising by 1.55% and silver by 3.93%, although COMEX silver futures experienced a notable decline of 6.31% [15]