Zheng Quan Shi Bao Wang·2025-09-21 23:15Group 1 - The technology sector has seen significant growth, with two "doubling funds" emerging in the second half of the year and multiple products increasing by over 90% [1] - Key stocks contributing to fund net value include leading optical module companies such as Xinyi Technology (300502), Zhongji Xuchuang (300308), and Tianfu Communication (300394) [1] - Notable performers this year include Shenghong Technology (300476), which has increased over 6 times, and Yingweike (002837), which has doubled in the second half of the year, appearing in many high-performing funds' portfolios [1] Group 2 - Fund managers have raised concerns about risks in the optical module sector, noting that many doubling funds' key stocks are at historically high price-to-earnings ratios, indicating potential short-term correction risks [1] - The frequent switching of market hotspots this year may lead to increased volatility in product performance if the held sectors enter a correction phase [1] - Issues related to scale and liquidity are also highlighted, as the rapid expansion of some doubling funds may complicate asset allocation and limit the adjustment space for key stocks, potentially restricting future operational flexibility [1]