每周股票复盘：云天励飞（688343）大宗交易频现折价超18%

Group 1 - The stock price of Yuntian Lifei (688343) closed at 85.32 yuan on September 19, 2025, down 5.55% from the previous week [1] - The company's total market capitalization is 30.615 billion yuan, ranking 12th out of 118 in the IT services sector and 613th out of 5,153 in the A-share market [1] Group 2 - On September 18, Yuntian Lifei executed a block trade at a discount of 20.67%, totaling 19.81 million yuan [2] - The company reported a revenue of 64,578.73 million yuan for the first half of 2025, representing a year-on-year increase of 123.10% [2][3] - The net loss for the company narrowed to -20,593.82 million yuan, with a significant improvement in net cash flow from operating activities amounting to 3,953.27 million yuan [2][3] - Research and development expenses reached 20,253.64 million yuan, accounting for 31.36% of total revenue [2][3]