今夜，大牛股突发公告

Core Viewpoint - Multiple companies have issued announcements regarding stock trading risks, highlighting significant price fluctuations and operational updates, urging investors to exercise caution [1][2]. Group 1: Company Announcements - Shida Group announced its stock has hit the daily limit for five consecutive trading days, clarifying that it has not engaged in business cooperation with Alibaba Cloud and reported a net loss of 87.57 million yuan for the third quarter of 2025 [3][4]. - Pinggao Co. stated that its stock price had deviated significantly, with a cumulative increase of over 30% in two trading days, while its operational status remains unchanged, but it warned of potential risks due to stock price volatility [3][4]. - Pinming Technology reported a 255.54% increase in stock price since September 25, 2025, indicating a significant deviation from its fundamental performance and warning investors of potential market risks [4][5]. - Changguang Huaxin confirmed that its operations are normal but noted uncertainty regarding the sales and profit contributions of its optical communication chips for the current year [5][6]. - Jindike announced the completion of its production season for the quadrivalent influenza virus vaccine, with approximately 1.56 million doses produced, but warned of potential return scenarios for unsold vaccines [6]. Group 2: Stock Buyback Adjustments - Industrial Fulian announced an increase in its stock buyback price limit from 19.36 yuan to 75 yuan per share to ensure the smooth implementation of its buyback plan, reflecting confidence in its future development [8][9]. - The company has repurchased 7.6974 million shares, accounting for 0.04% of its total share capital, with a total expenditure of 147 million yuan [8][9]. - Industrial Fulian clarified that its fourth-quarter operations are proceeding as planned, with no adjustments to profit targets, and emphasized that it has not received any requests from major clients to alter business models or pricing [9].