四川双马今日大宗交易折价成交11.5万股，成交额208.15万元

Group 1 - The core point of the news is that Sichuan Shuangma conducted a block trade on October 28, with a total of 115,000 shares traded at a price of 18.1 yuan, which is an 8.08% discount compared to the market closing price of 19.69 yuan [1][2]. Group 2 - The block trade accounted for 1.65% of the total trading volume on that day, with a transaction value of 2.0815 million yuan [1][2]. - The buyer of the block trade was an institutional investor, specifically from CITIC Securities Co., Ltd. Beijing Dongcheng Branch [2].