三季报 AI的水位

Core Insights - The article focuses on the performance of various sectors in the recent quarterly reports, particularly highlighting the significance of AI-related investments and the shifts in sector allocations [1]. Sector Performance - The electronic and communication sectors have the highest market capitalization shares, with electronics at 25.53%, electric equipment at 12.32%, pharmaceutical and biological at 9.66%, communication at 9.26%, and non-ferrous metals at 6% [2]. - In contrast, sectors such as comprehensive services (0.1%), social services (0.18%), textiles and apparel (0.21%), environmental protection (0.24%), and beauty care (0.24%) have relatively low market capitalization shares [2]. - The over-allocation ratios indicate significant overweights in electronics (11.43%), communication (5.26%), electric equipment (3.2%), pharmaceuticals (2.3%), and non-ferrous metals (1.1%), while non-bank financials (-4.47%), banks (-4.02%), computers (-3.59%), utilities (-2.13%), and basic chemicals (-1.8%) are underweight [2]. Quarterly Changes - Compared to the previous quarter, the electronic sector saw the largest increase in holdings at 6.86%, followed by communication at 3.93%, electric equipment at 2.43%, non-ferrous metals at 1.35%, and media at 0.55% [7]. - The proportion of holdings in the entrepreneurial board increased significantly from 18.93% to 23.62%, a rise of 4.70 percentage points, while the sci-tech board also saw an increase of 2.07 percentage points [8]. AI Investment Focus - The recent surge in AI investments is primarily concentrated in the entrepreneurial board's optical modules and the sci-tech board's chips, particularly in domestic GPU and FAB manufacturers such as Cambrian, Haiguang Information, SMIC, and Huahong Semiconductor [9]. - The AI-related ETF, particularly the sci-tech chip ETF, has shown remarkable performance with a quarterly increase of 68.32% [9]. Institutional Holdings - Institutional holdings reflect a clear trend towards indexation, with leading companies benefiting from scarcity premiums in competitive landscapes [10].