永信至诚今日大宗交易折价成交50万股，成交额1018.5万元

Group 1 - The core transaction involved Yongxin Zhicheng, with 500,000 shares traded on November 17, resulting in a transaction amount of 10.185 million yuan, which accounted for 17.95% of the total trading volume for that day [1] - The transaction price was 20.37 yuan per share, representing a discount of 1.5% compared to the market closing price of 20.68 yuan [1] Group 2 - The trading date was November 17, and the stock code for Yongxin Zhicheng is 688244 [2] - The total transaction volume was 500,000 shares, with a total transaction value of 10.185 million yuan [2]