见证历史！首破400万亿元！

Group 1 - The core point of the article highlights that the total trading volume of A-shares has exceeded 405 trillion yuan for the first time in history as of December 22, 2025 [1] - The overall turnover rate of A-shares has improved significantly, with an average turnover rate close to 1.74% this year, potentially reaching a new high since 2016 [1] - A total of 19 individual stocks have recorded trading volumes exceeding 1 trillion yuan this year, with companies like Zhongji Xuchuang, Dongfang Caifu, and Xinyisheng surpassing 20 trillion yuan in trading volume [1]