金融界7月16日消息，上证指数低开震荡，中证深圳科技创新主题指数 (深圳科技，931136)下跌0.62%， 报7799.9点，成交额268.51亿元。 资料显示，指数样本每季度调整一次，样本调整实施时间分别为每年3月、6月、9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。当上 证港股通范围发生变动导致样本不再满足港股通资格时，将进行相应调整。 数据统计显示，中证深圳科技创新主题指数近一个月上涨8.18%，近三个月上涨13.34%，年至今上涨 10.97%。 跟踪深圳科技的公募基金包括：安信深圳科技指数(LOF)A、安信深圳科技指数(LOF)C。 从中证深圳科技创新主题指数持仓的市场板块来看，深圳证券交易所占比84.06%、上海证券交易所占 比15.94%。 从中证深圳科技创新主题指数持仓样本的行业来看，信息技术占比36.82%、工业占比32.14%、医药卫 生占比1 ...

Core Viewpoint - The China Securities Shenzhen Technology Innovation Theme Index has shown a mixed performance, with a recent increase of 1.14% and a year-to-date rise of 7.74%, reflecting the overall performance of listed companies in Shenzhen's technology innovation sector [1][2]. Group 1: Index Performance - The China Securities Shenzhen Technology Innovation Theme Index opened lower but closed higher, reporting a value of 7573.16 points with a trading volume of 30.092 billion yuan [1]. - Over the past month, the index has increased by 7.25%, while it has decreased by 1.84% over the last three months [1]. - The index was established on November 14, 2014, with a base point of 3000.0 [1]. Group 2: Index Composition - The top ten weighted stocks in the index include: - Huichuan Technology (7.72%) - ZTE Corporation (7.67%) - BYD (7.3%) - Xinwanda (5.25%) - Shenzhen South Circuit (5.1%) - Huitai Medical (4.46%) - Shunluo Electronics (4.02%) - New Industry (3.95%) - Pengding Holdings (3.95%) - Heertai (3.8%) [1]. - The index's holdings are primarily from the Shenzhen Stock Exchange, accounting for 84.60%, while the Shanghai Stock Exchange contributes 15.40% [1]. Group 3: Industry Breakdown - The industry composition of the index includes: - Information Technology: 35.72% - Industrial: 32.08% - Healthcare: 11.97% - Communication Services: 11.31% - Consumer Discretionary: 8.92% [2]. Group 4: Index Adjustment Mechanism - The index samples are adjusted quarterly, with adjustments occurring in the second week of March, June, September, and December [2]. - Weight factors are generally fixed until the next scheduled adjustment, with special circumstances allowing for temporary adjustments [2].