T&S(SZ:300570) Xin Lang Cai Jing·2026-02-26 06:07Group 1 - The core point of the news is that Shenzhen Taicheng Light Communication Co., Ltd. (太辰光) experienced a stock price increase of 5.17%, reaching 146.51 yuan per share, with a trading volume of 3.845 billion yuan and a turnover rate of 14.06%, resulting in a total market capitalization of 33.276 billion yuan [1] - The company, established on December 12, 2000, and listed on December 6, 2016, specializes in the research, production, and sales of optical devices, with 98.02% of its main business revenue coming from optical device products [1] - The revenue composition of the company includes 1.81% from other products and 0.17% from optical sensing products [1] Group 2 - From the perspective of fund holdings, one fund under Yinhua Fund has a significant position in Taicheng Light, with the Yinhua ChiNext 200 ETF (创业板200ETF银华) increasing its holdings by 700 shares to a total of 1,400 shares, representing 0.98% of the fund's net value, making it the ninth largest holding [2] - The Yinhua ChiNext 200 ETF was established on December 20, 2023, with a latest scale of 16.4771 million yuan, and has achieved a year-to-date return of 8.64%, ranking 1909 out of 5572 in its category [2] - The fund manager, Tan Yuefeng, has a total asset scale of 9.391 billion yuan, with the best fund return during his tenure being 80.99% and the worst being -44.45% [2]