人民币对美元中间价升至近15个月新高，哪些因素支撑人民币强势表现？

Core Viewpoint - The recent appreciation of the Chinese yuan against the US dollar is supported by various factors, including domestic economic stability, foreign investment trends, and external monetary policies [1][5][11]. Group 1: Currency Exchange Rate Trends - The People's Bank of China raised the yuan's central parity rate against the US dollar by 52 basis points to 7.0471, marking a 15-month high [1]. - As of December 24, the onshore yuan surpassed the 7.02 mark against the US dollar, while the offshore yuan broke the 7.01 threshold, with year-to-date increases of over 3.8% and 4.4% respectively [3]. Group 2: Economic and Market Factors - The domestic economy is showing steady improvement, with the stock market trending upwards, which has led to increased foreign investment in yuan-denominated assets [5]. - Despite a complex international trade environment, China's foreign trade remains stable, providing solid support for the yuan's appreciation [7]. Group 3: Investor Behavior and Market Sentiment - Many enterprises had previously adopted a wait-and-see approach regarding currency settlement, but as the year-end approached, they engaged in settlement activities, contributing to the rapid appreciation of the yuan [9]. - The recent strength of the yuan reflects growing confidence among domestic and foreign investors in the Chinese economy and market, particularly due to advancements in technology [11].