Zheng Quan Shi Bao Wang·2025-11-28 15:18Core Viewpoint - Multiple important indices in the A-share market are set to undergo significant adjustments, effective December 12, 2025, as announced by the Shanghai and Shenzhen Stock Exchanges [1][2]. Index Adjustments - The Shanghai Stock Exchange will adjust the sample stocks of the Shanghai 50, Shanghai 180, Shanghai 380, and Sci-Tech 50 indices, with the number of changes being 4, 7, 38, and 2 respectively [2]. - The Shenzhen Stock Exchange will implement adjustments to the Shenzhen Component Index, ChiNext Index, Shenzhen 100, and ChiNext 50, with 17, 8, 7, and 5 stocks being added or removed respectively [6][7][8][9]. Specific Stock Changes - For the Shanghai 50 Index, the stocks being added include SAIC Motor, Northern Rare Earth, Huadian New Energy, and Zhongke Shuguang, while those being removed are Poly Developments, China Mobile, China Aluminum, and CRRC [2][3]. - The Shanghai 180 Index will see additions of Guotou Capital, Zhongtian Technology, Huadian New Energy, Guolian Minsheng, Ruixin Micro, Shengmei Shanghai, and Jinghe Integrated, with removals including COSCO Shipping Energy, Nanshan Aluminum, Sailun Tire, and others [4]. - The Shanghai 380 Index will add 38 stocks, including Zhongtian Technology and Hainan Airport, while removing 38 others [5]. Industry Impact - The adjustments are expected to lead to an increase in the representation and weight of sectors such as information technology, communication services, and industrials within the indices, enhancing the indices' ability to serve national strategies and guide resource allocation [12].