T&S(SZ:300570) Xin Lang Cai Jing·2026-01-21 06:17Group 1 - The core point of the news is that Taicheng Light has seen a stock price increase of 5.51%, reaching 108.23 CNY per share, with a trading volume of 1.317 billion CNY and a turnover rate of 6.52%, resulting in a total market capitalization of 24.582 billion CNY [1] - Taicheng Light, established on December 12, 2000, and listed on December 6, 2016, is primarily engaged in the research, production, and sales of optical devices, with 98.02% of its revenue coming from optical device products [1] - The company is located in Shenzhen, Guangdong Province, and operates from a multi-address facility [1] Group 2 - Kaishi Fund has a significant holding in Taicheng Light, with its Kaishi Lanlong Economic Holding Period Mixed Fund (006430) reducing its stake by 14,100 shares in the third quarter, now holding 46,900 shares, which represents 4.07% of the fund's net value [2] - The fund has achieved a floating profit of approximately 265,000 CNY as of the report date [2] - The Kaishi Lanlong Economic Holding Period Mixed Fund was established on December 5, 2018, with a current size of 121 million CNY, and has reported a year-to-date return of 1.32% [2]