建筑材料行业深度报告：建筑、建材2025Q3公募基金持仓低位波动，持仓集中度有所提升

Investment Rating - The report maintains an "Increase" rating for the construction materials industry [1] Core Insights - The report highlights that public fund holdings in the construction materials sector are at a low level, with a slight increase in concentration [1][5] - The analysis includes 146 A-share stocks in the construction and materials sectors, categorized into eight sub-industries for a comprehensive review of public fund holdings [10] Summary by Sections 1. Industry Holding Analysis - The market value of public fund heavy holdings in the construction and materials sectors is 0.38% and 0.61% of total A-shares, respectively, ranking in the 21st percentile over the past ten years [12] - The construction and materials sectors show a slight decrease in overweight ratios, with construction at -1.37% and materials at -0.17% [12] - The concentration of holdings in the construction and materials sectors has increased, with 41 and 20 stocks held by sample funds, representing 25% and 27% of their respective industries [5][11] 2. Individual Stock Holdings - The top five stocks by market value in the construction sector are China State Construction (2.49 billion), Honglu Steel Structure (1.56 billion), Jincheng Holdings (1.55 billion), Oriental Tower (0.52 billion), and Huatu Shanding (0.36 billion) [2] - In the materials sector, the top five stocks are China National Materials (2.09 billion), Sankeshu (1.99 billion), Conch Cement (1.64 billion), Oriental Yuhong (1.10 billion), and China Jushi (0.93 billion) [2] - The report notes significant changes in individual stock holdings, with increases for Oriental Yuhong (+2.33 percentage points) and decreases for Sankeshu (-1.85 percentage points) [2]