A股迎开门红，全市场成交额突破2.5万亿元，A500ETF易方达(159361)等产品受资金关注

Group 1 - The A-share market experienced a strong start to the new year, with total trading volume exceeding 2.5 trillion yuan, an increase of over 500 billion yuan compared to the previous trading day [1] - The CSI A500 index rose by 2.1%, the CSI A100 index increased by 2.4%, and the CSI A50 index gained 2.5% [1] - The E Fund A500 ETF (159361) recorded a trading volume of 6.8 billion yuan for the day, with net subscriptions exceeding 1 million units [1] - The product's annualized tracking error for 2025 is only 0.34%, with an excess return of 2.86% relative to the index, ranking first among similar products with over 10 billion yuan in scale [1]