金融界5月8日消息，上证指数低开高走，上证一带一路主题指数 (沪新丝路，000160)下跌0.19%，报 1744.1点，成交额241.79亿元。 数据统计显示，上证一带一路主题指数近一个月上涨7.43%，近三个月下跌2.21%，年至今下跌6.06%。 据了解，上证一带一路主题指数选取基础建设、交通运输、高端装备、电力通信、资源开发等五大产业 中最具主题代表性的沪市证券作为指数样本，以反映一带一路主题在沪市证券的整体走势。该指数以 2012年12月31日为基日，以1000.0点为基点。 从指数持仓来看，上证一带一路主题指数十大权重分别为：紫金矿业（5.41%）、中国建筑 （5.29%）、三一重工（4.81%）、中远海控（4.29%）、国电南瑞（4.22%）、中国石油（4.19%）、万 华化学（4.07%）、中国中车（4.04%）、中国石化（3.81%）、中国船舶（3.09%）。 从上证一带一路主题指数持仓的市场板块来看，上海证券交易所占比100.00%。 从上证一带一路主题指数持仓样本的行业来看，工业占比63.75%、原材料占比19.92%、能源占比 11.05%、通信服务占比3.21%、公用事业占比2.06 ...

Core Points - The Shanghai One Belt One Road Theme Index has decreased by 0.37%, closing at 1819.47 points with a trading volume of 39.82 billion yuan [1] - Over the past month, the index has increased by 4.39%, but it has decreased by 2.84% over the last three months and by 1.81% year-to-date [2] - The index includes representative stocks from five major industries: infrastructure, transportation, high-end equipment, power communication, and resource development [2] Index Composition - The top ten weighted stocks in the index are: Zijin Mining (5.36%), China State Construction (4.99%), Wanhua Chemical (4.8%), Sany Heavy Industry (4.63%), COSCO Shipping Holdings (4.1%), China Petroleum (4.02%), Guodian Nanjing Automation (3.96%), CRRC Corporation (3.94%), Sinopec (3.69%), and China Shipbuilding Industry (3.11%) [2] - The index is composed entirely of stocks listed on the Shanghai Stock Exchange, with an industry breakdown of 63.05% in industrials, 20.75% in materials, 10.97% in energy, 3.28% in communication services, and 1.94% in utilities [3] Index Adjustment - The index samples are adjusted quarterly, with adjustments occurring in the second Friday of March, June, September, and December [3] - Each adjustment typically does not exceed 20% of the sample, and the weight factors are fixed until the next scheduled adjustment [3]