高铁轨交概念再度拉升 研奥股份等多股涨超10%

Group 1 - The core viewpoint of the article highlights a significant rise in high-speed rail and urban transit stocks, with companies like Shenzhou High-speed Rail hitting the daily limit and others like Yan'ao Co., Tian Tie Co., and Jin Ying Heavy Industry increasing by over 10% [1] - The National Railway Group of China reported that from January to April this year, the total fixed asset investment in railways reached 194.7 billion yuan, marking a year-on-year growth of 5.3% [1]