美元指数，波动加大！

Group 1 - The US dollar index experienced a significant decline of 0.43% on December 10, marking the largest single-day drop since mid-September, reflecting a dramatic shift in the dollar's trajectory for 2025 [1] - Bloomberg data indicates that the Bloomberg Dollar Spot Index fell nearly 8% for the year, the largest annual decline since 2017, while the Dow Jones measure shows a drop of approximately 6.5%, marking the worst performance since 2017 [1] - In the first half of 2025, the dollar index saw a sharp decline of 10.8%, the largest drop for that period since 1973, driven by global uncertainties and concerns over potential stagflation in the US economy [1] Group 2 - The European Central Bank decided to maintain key interest rates unchanged on December 18, highlighting the growing divergence in monetary policy between the US and Europe amid changing global trade conditions [2] - Despite the prevailing bearish sentiment on the dollar, some institutions like Citigroup and Standard Chartered maintain a bullish outlook, citing the resilience of the US economy driven by artificial intelligence, which may continue to attract international capital [2] - The International Monetary Fund reported a decline in the dollar's share of global foreign exchange reserves from 57.79% to 56.32% by mid-2025, marking a 30-year low and indicating a profound change in the dollar's status in the international monetary system [2] Group 3 - A survey of 75 central banks revealed that the dollar's ranking as the "most popular currency" has dropped to seventh place, although it remained the most favored currency in 2024 [3] - Central banks are increasing their gold reserves at a record pace, with one-third of the surveyed central banks planning to boost their gold holdings in the next one to two years, particularly among emerging market central banks [3]