智通财经网·2025-10-22 10:40Core Viewpoint - Sinopec Oilfield Services (01033) experienced a significant stock price fluctuation, with a cumulative closing price deviation exceeding 20% over three consecutive trading days from October 20 to 22, 2025, indicating abnormal trading activity [1] Summary by Relevant Sections - Stock Price Movement - The company's A-share stock price showed a cumulative increase of over 20% during the specified trading days, which is classified as abnormal trading behavior according to the Shanghai Stock Exchange regulations [1] - Company's Response - Following the price volatility, the company conducted a self-examination and formally inquired its controlling shareholder and actual controller, confirming that there are no undisclosed significant information as of the date of the announcement [1] - Investor Advisory - The company cautioned investors about the recent significant fluctuations in stock trading prices and urged them to be aware of market risks, encouraging rational decision-making and prudent investment [1]