AECC AST(SH:600391) Xin Lang Cai Jing·2025-12-22 05:50Group 1 - The core viewpoint of the news is that China Aviation Engine Technology Co., Ltd. (航发科技) has seen a stock price increase of 5.23%, reaching 33.00 yuan per share, with a trading volume of 1.379 billion yuan and a turnover rate of 12.94%, resulting in a total market capitalization of 10.894 billion yuan [1] - The company, established on December 28, 1999, and listed on December 12, 2001, is located in Chengdu, Sichuan Province, and specializes in the research, development, manufacturing, sales, and service of aircraft engines and gas turbine components [1] - The main business revenue composition includes 63.59% from domestic aviation and derivative products, 35.26% from foreign trade outsourcing, and 1.15% from industrial and civilian products and others [1] Group 2 - Longsheng Fund has a significant holding in China Aviation Engine Technology Co., Ltd., with its Longsheng Aerospace Marine Mixed A Fund (000535) holding 421,400 shares, accounting for 4.76% of the fund's net value, making it the largest holding [2] - The Longsheng Aerospace Marine Mixed A Fund was established on March 11, 2014, with a current scale of 155 million yuan, achieving a year-to-date return of 28.19%, ranking 2980 out of 8170 in its category, and a one-year return of 27.83%, ranking 2805 out of 8139 [2] - The fund manager, Wang Bingfang, has been in position for 3 years and 155 days, with the fund's total assets amounting to 471 million yuan, and the best and worst returns during his tenure being -0.49% and -47.99%, respectively [3]