CIG(SH:603083) Shang Hai Zheng Quan Bao·2025-08-19 19:00Core Viewpoint - Shanghai Cambridge Technology Co., Ltd. experienced a significant stock price fluctuation, with a cumulative closing price increase of 20% over two consecutive trading days on August 18 and 19, 2025, which is classified as abnormal trading activity according to the Shanghai Stock Exchange regulations [2][4]. Group 1: Stock Trading Abnormality - The company's A-share stock price deviation reached a cumulative increase of 20% over two trading days, indicating abnormal trading activity [2][4]. - The company has confirmed that there are no undisclosed significant matters that could impact the stock price, following inquiries with its controlling shareholder and actual controller [5][8]. Group 2: Operational Status - The company's daily operations have not undergone significant changes, and there have been no major fluctuations in production costs or sales [5]. - There are no ongoing major asset restructuring, share issuance, or other significant transactions that could affect the stock price [5][8]. Group 3: Market Sentiment - The company found no media reports or market rumors that could have significantly influenced the stock price [6]. - There are no other sensitive information or undisclosed matters that could explain the stock price volatility [8]. Group 4: Shareholder Activity - During the period of stock price fluctuation, the company's directors, senior management, and controlling shareholders did not engage in buying or selling the company's stock [9]. Group 5: Risk Considerations - The company has a high static price-to-earnings ratio of 94.77, significantly above the industry average of 50.28, indicating potential investment risks [10]. - The controlling shareholder has a plan to reduce their shareholding by up to 8,041,254 shares, which constitutes 3.00% of the total shares, posing a potential risk to investors [12].