博云新材今日跌6.65%，3家机构专用席位净买入1.53亿元

Group 1 - The stock of Boyun New Materials (002297) fell by 6.65% today [1] - The trading volume reached 2.119 billion yuan, with a turnover rate of 36.64% [1] - According to post-market data, three institutional special seats net bought 153 million yuan [1]