首开股份涨停，沪股通龙虎榜上买入493.73万元，卖出1486.71万元

Group 1 - The stock of Shoukai Co., Ltd. (600376) reached the daily limit, with a turnover rate of 3.24% and a transaction amount of 235 million yuan, showing a fluctuation of 2.55% [2] - Institutional investors net sold 70.83 million yuan, while the Shanghai Stock Connect saw a net sell of 9.93 million yuan, with a total net buy from brokerage seats of 2.79 million yuan [2] - The stock was listed on the Shanghai Stock Exchange due to a price deviation of 9.44%, with significant net selling from institutional seats [2] Group 2 - The latest margin trading data shows a total margin balance of 19.3 million yuan, with a financing balance of 19.1 million yuan and a securities lending balance of 1.9026 million yuan [3] - Over the past five days, the financing balance decreased by 0.50%, while the securities lending balance dropped by 6.40% [3] - The company reported a first-quarter revenue of 3.886 billion yuan, representing a year-on-year growth of 12.34%, but recorded a net loss of 1.079 billion yuan [3] Group 3 - On July 15, the company released a half-year performance forecast, estimating a net loss between 2.1 billion yuan and 1.6 billion yuan [4] - The trading data on July 21 indicated significant selling from institutional seats, with the top selling seat accounting for 31.01 million yuan [4][5] - The top five buying and selling brokerage seats had a combined transaction amount of 129 million yuan, with a net selling amount of 77.96 million yuan [2][4]