Group 1 - Guoyi Bidding (831039) experienced a trading halt today with a daily price increase of 30.00% and a trading amplitude of 35.34% [2] - The total turnover for the day reached 439 million yuan, with a turnover rate of 16.63% [2] - The net selling amount from the top trading seats was 37.16 million yuan, indicating a significant sell-off despite the price surge [2] Group 2 - The top five trading seats accounted for a total transaction amount of 116 million yuan, with buying transactions amounting to 39.25 million yuan and selling transactions amounting to 76.41 million yuan [2] - The largest buying seat was China Galaxy Securities Co., Ltd. with a purchase amount of 11.84 million yuan, while the largest selling seat was Guotou Securities Co., Ltd. with a selling amount of 26.34 million yuan [2] - Detailed trading data shows that the buying and selling activities were concentrated among a few key securities firms, highlighting the competitive trading environment [2]

招标股份（301136）公告，2025年第一季度营业收入8307.22万元，同比下降19.83%。净亏损533.23万 元，去年同期净利润697.64万元。 ...