金融界7月11日消息，上证指数高开震荡，中证央企新动能主题指数 (央企新动能，931522)上涨0.5%， 报1629.68点，成交额195.8亿元。 据了解，中证央企新动能主题指数从国资委下辖央企上市公司中，选取45只制造、科技与现代服务业领 域涉及产业交叉渗透发展，且在研发投入、盈利能力、产业交叉与渗透和潜力等方面具有一定代表性的 上市公司证券作为指数样本，以反映央企新动能主题上市公司证券的整体表现。该指数以2014年12月31 日为基日，以1000.0点为基点。 资料显示，指数样本每半年调整一次，样本调整实施时间分别为每年6月和12月的第二个星期五的下一 交易日。权重因子随样本定期调整而调整，调整时间与指数样本定期调整实施时间相同。在下一个定期 调整日前，权重因子一般固定不变。特殊情况下将对指数进行临时调整。当样本退市时，将其从指数样 本中剔除。样本公司发生收购、合并、分拆等情形的处理，参照计算与维护细则处理。 从指数持仓来看，中证央企新动能主题指数十大权重分别为：海康威视（9.61%）、长安汽车 （8.91%）、中航光电（7.0%）、深南电路（4.4%）、中航机载（4.05%）、中国软件（3.65%） ...

Core Viewpoint - The China Securities Central Enterprises New Momentum Theme Index has experienced a decline, reflecting the overall performance of selected central enterprise listed companies in manufacturing, technology, and modern services sectors [1][2] Group 1: Index Performance - The index opened lower and fluctuated, closing down 0.23% at 1593.32 points with a trading volume of 17.177 billion yuan [1] - Over the past month, the index has decreased by 0.93%, and it has fallen by 2.38% over the last three months and year-to-date [1] Group 2: Index Composition - The index comprises 45 representative listed companies from central enterprises under the State-owned Assets Supervision and Administration Commission, focusing on R&D investment, profitability, and industry cross-integration [1] - The top ten weighted stocks in the index are Hikvision (10.25%), Guodian NARI (9.28%), Changan Automobile (8.8%), AVIC Optoelectronics (7.12%), China Merchants Highway (3.75%), AVIC On-board (3.65%), Shenzhen South Road (3.58%), China Software (3.51%), Baoxin Software (3.4%), and AVIC High-Tech (2.74%) [1] Group 3: Market Distribution - The index's holdings are primarily listed on the Shenzhen Stock Exchange (58.81%), followed by the Shanghai Stock Exchange (40.91%) and the Beijing Stock Exchange (0.28%) [1] - The industry distribution of the index holdings shows that industrials account for 47.74%, information technology for 34.27%, consumer discretionary for 9.20%, financials for 4.14%, communication services for 3.83%, and materials for 0.83% [2] Group 4: Index Adjustment Mechanism - The index samples are adjusted semi-annually, with adjustments occurring on the next trading day after the second Friday of June and December each year [2] - Weight factors are generally fixed until the next scheduled adjustment, with special circumstances allowing for temporary adjustments [2]