尾盘次新股C华之杰扩大涨幅至53%，触发二次临停，成交超8亿元，换手率达75%。

Group 1 - The stock of company C Huazhi Jie surged by 53% in the late trading session, triggering a second trading halt [1] - The trading volume exceeded 800 million yuan, indicating significant investor interest [1] - The turnover rate reached 75%, reflecting high liquidity in the stock [1]