Zheng Quan Zhi Xing·2025-09-02 05:36Group 1 - The A-share market experienced a volatile pullback on September 2, with AI computing sectors, particularly optical modules, leading the decline. The ChiNext AI ETF (159381) fell over 5.5%, with major holdings like Ruijie Networks (301165), Taicheng Light (300570), Tianfu Communication (300394), and Runze Technology (300442) dropping more than 8% [1] - Institutional funds continue to focus on the high-growth computing sector. CITIC Securities reported that public funds significantly increased their holdings in the optical module/device sector in Q2 2025, while reducing positions in IDC and telecom sectors. The top ten stocks with increased holdings included Xinyi Sheng (300502), Zhongji Xuchuang (300308), and Changxin Bochuang (300548) [2] - The ChiNext AI ETF (159381) tracks the ChiNext AI Index (970070.CNI) and focuses on leading companies in the AI industry chain, with over 50% weight in optical modules. The top three weighted stocks are Xinyi Sheng (20.3%), Zhongji Xuchuang (18.8%), and Tianfu Communication (6.5%). The ETF has seen an over 80% increase year-to-date, outperforming similar AI indices [3] Group 2 - The Food and Beverage ETF (product code: 515170) tracks the CSI Sub-Industry Food and Beverage Theme Index, with a recent five-day decline of 0.65% and a PE ratio of 21.23 times. The latest share count is 6.92 billion, down by 7.5 million shares, with a net outflow of 30.86 million [6] - The Gaming ETF (product code: 159869) tracks the CSI Animation and Gaming Index, with a recent five-day increase of 1.72% and a PE ratio of 42.95 times. The latest share count is 5.39 billion, up by 14 million shares, with a net outflow of 64.36 million [6] - The Sci-Tech Semiconductor ETF (product code: 588170) tracks the Shanghai Stock Exchange Sci-Tech Board Semiconductor Materials and Equipment Theme Index, with a recent five-day increase of 3.70%. The latest share count is 400 million, up by 34 million shares, with a net inflow of 5.4 million [6] - The Cloud Computing 50 ETF (product code: 516630) tracks the CSI Cloud Computing and Big Data Theme Index, with a recent five-day increase of 5.37% and a PE ratio of 126.28 times. The latest share count is 410 million, up by 11 million shares, with a net outflow of 7.44 million [7]