Hong Kong Stock Movement: PERFECTECH INTL plummets 17.5%, active capital flow, sector trend attracts market attention?

Hong Kong Stock Movement PERFECTECH INTL, down 17.50%, with no significant news recently. Trading is active, and capital flow is evident. Considering the sector and industry trends, the stock shows significant volatility, and the specific reasons need further observation. Stocks with High Trading Volume in the Industry Bruker, down 5.07%, with a trading volume of HKD 72.3 million, and no significant news recently. Trading is active, and capital flow is evident. Considering the sector and industry trends, the stock shows significant volatility, and the specific reasons need further observation. China Aerospace Science and Technology Corporation, down 4.36%. Based on recent key news: On November 17, China Aerospace Science and Technology Corporation announced a change in company secretary, with Li Xiaoyang resigning and Huang Yating taking over. This change may affect the company's governance structure, leading to market concerns about the company's future compliance strategy, which in turn affects the stock price decline. Source: Zhitong Finance On November 17, the company received a waiver allowing Huang Yating to continue serving as co-company secretary despite a lack of experience. This waiver may raise market doubts about the company's compliance capabilities, further exacerbating stock price volatility. Source: Zhitong Finance On November 17, the market's reaction to the governance changes led to an increase in trading volume, with a trading amount reaching HKD 4.7 million, indicating that investors are cautious about the company's future uncertainties. Source: Zhitong Finance Delin International (500), up 0.12%, with a trading volume of HKD 1.92 million, and no significant news recently. Trading is active, and capital flow is evident. Considering the sector and industry trends, the stock shows significant volatility, and the specific reasons need further observation. Stocks with High Market Capitalization in the Industry Faraday, with a market capitalization of HKD 8.151 billion, and no significant news recently. Trading is active, and capital flow is evident. Considering the sector and industry trends, the stock shows significant volatility, and the specific reasons need further observation