Yangtze Optical Electronic (SH:688143) Xin Lang Cai Jing·2025-09-18 02:52Group 1 - The core viewpoint of the news is the performance and market position of Changying Tong, a company specializing in optical fiber gyroscope technology, which has seen a stock price increase of 5.13% to 50.00 CNY per share, with a total market capitalization of 6.119 billion CNY [1] - Changying Tong was established on May 18, 2010, and went public on December 12, 2022. The company focuses on the research, production, and sales of optical fiber ring core components and solutions, primarily targeting the military inertial navigation sector [1] - The revenue composition of Changying Tong includes: optical fiber ring devices (57.61%), special optical fibers (19.36%), other supplementary products (11.68%), new materials (7.18%), and optical device equipment and others (4.17%) [1] Group 2 - According to data from the top ten holdings of funds, one fund under Qianhai Kaiyuan has a significant position in Changying Tong, holding 294,500 shares, which accounts for 7.92% of the fund's net value, making it the second-largest holding [2] - The Qianhai Kaiyuan Hong Kong-Shenzhen Strong Domestic Industry Fund (004321) has achieved a year-to-date return of 8.74% and a one-year return of 54.91%, ranking 2878 out of 7980 in its category [2] - The fund manager, Wei Chun, has been in position for 6 years and 255 days, with the fund's total asset size at 1.197 billion CNY and a best return of 126.53% during his tenure [3]