金融界4月17日消息，A股三大指数收盘涨跌不一，沪深300纺织服装指数 (300纺织服装，L11625)报 903.99点。 数据统计显示，沪深300纺织服装指数近一个月下跌16.59%，近三个月下跌24.58%，年至今下跌 30.82%。 据了解，为反映沪深300指数样本中不同行业公司证券的整体表现，为投资者提供分析工具，将沪深300 指数300只样本按行业分类标准分为11个一级行业、35个二级行业、90余个三级行业及200余个四级行 业。沪深300行业指数系列分别以进入各一级、二级、三级、四级行业的全部证券作为样本编制指数， 形成沪深300行业指数。该指数以2004年12月31日为基日，以1000.0点为基点。 从沪深300纺织服装指数持仓的市场板块来看，深圳证券交易所占比100.00%。 从沪深300纺织服装指数持仓样本的行业来看，鞋帽与配饰占比100.00%。 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。遇临时调整时，当沪深300 ...

Group 1 - The A-share market indices closed mixed, with the CSI 300 Construction Engineering Index reported at 3396.52 points [1] - The CSI 300 Construction Engineering Index has decreased by 2.86% over the past month, 3.15% over the past three months, and 9.76% year-to-date [2] - The CSI 300 Index categorizes its 300 sample stocks into 11 primary industries, 35 secondary industries, over 90 tertiary industries, and more than 200 quaternary industries for comprehensive performance analysis [2] Group 2 - The CSI 300 Construction Engineering Index is entirely composed of stocks from the Shanghai Stock Exchange, with a 100% allocation [3] - Within the index's holdings, infrastructure construction accounts for 58.26%, housing construction for 34.83%, and specialized engineering for 6.90% [3] - The index samples are adjusted biannually, with adjustments occurring on the next trading day after the second Friday of June and December [3]

Group 1 - The core viewpoint of the articles highlights the performance of the CSI 300 Food Index, which closed at 7859.35 points, showing a decline of 0.33% over the past month, an increase of 2.02% over the past three months, and a year-to-date decline of 3.28% [1] - The CSI 300 Food Index is categorized into various industry sectors, including 11 primary industries, 35 secondary industries, over 90 tertiary industries, and more than 200 quaternary industries, providing a comprehensive analysis tool for investors [1] - The index is based on the performance of 300 sample securities from the CSI 300 Index, with a base date of December 31, 2004, and a base point of 1000.0 [1] Group 2 - The market share of the CSI 300 Food Index is predominantly from the Shanghai Stock Exchange at 84.29%, while the Shenzhen Stock Exchange accounts for 15.71% [2] - Within the holdings of the CSI 300 Food Index, the dairy sector represents 61.22%, followed by condiments and edible oils at 29.41%, and meat products at 9.37% [2] - The index samples are adjusted biannually, with adjustments occurring on the next trading day after the second Friday of June and December each year, ensuring that the weight factors are updated accordingly [2]

金融界4月11日消息，上证指数低开高走，沪深300航天国防指数 (300国防，L11608)报9331.96点。 数据统计显示，沪深300航天国防指数近一个月下跌3.97%，近三个月下跌3.20%，年至今下跌9.47%。 据了解，为反映沪深300指数样本中不同行业公司证券的整体表现，为投资者提供分析工具，将沪深300 指数300只样本按行业分类标准分为11个一级行业、35个二级行业、90余个三级行业及200余个四级行 业。沪深300行业指数系列分别以进入各一级、二级、三级、四级行业的全部证券作为样本编制指数， 形成沪深300行业指数。该指数以2004年12月31日为基日，以1000.0点为基点。 从沪深300航天国防指数持仓的市场板块来看，上海证券交易所占比58.33%、深圳证券交易所占比 41.67%。 从沪深300航天国防指数持仓样本的行业来看，航空占比100.00%。 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。遇临时调整时，当沪深 ...