沪深两市今日成交额合计1.66万亿元，新易盛成交额居首

Summary of Key Points Core Viewpoint - The total trading volume of the Shanghai and Shenzhen stock markets on December 18 reached 1.66 trillion yuan, reflecting a decrease of approximately 155.66 billion yuan compared to the previous trading day [1] Trading Volume Details - The trading volume in the Shanghai market was 704.90 billion yuan, while the Shenzhen market recorded 950.59 billion yuan [1] - New Yisheng topped the trading volume with 17.33 billion yuan, followed by Zhongji Xuchuang at 13.81 billion yuan, CATL at 11.08 billion yuan, Aerospace Electronics at 10.68 billion yuan, and Invec at 10.39 billion yuan [1]