东田微股价涨5%，长城基金旗下1只基金重仓，持有3.06万股浮盈赚取24.11万元

Group 1 - The core viewpoint of the news is that Dongtian Micro is experiencing a slight increase in stock price, with a current trading price of 165.46 yuan per share and a total market capitalization of 13.249 billion yuan [1] - Dongtian Micro, established on July 24, 2009, specializes in the research, production, and sales of precision optical film components, with its main revenue sources being imaging optical components (66.83%), communication optical components (28.71%), and other income (4.46%) [1] Group 2 - From the perspective of major fund holdings, Changcheng Fund has one fund heavily invested in Dongtian Micro, specifically Changcheng Jiuheng Mixed A, which reduced its holdings by 27,400 shares in the fourth quarter, now holding 30,600 shares, accounting for 3.59% of the fund's net value [2] - The fund has achieved a year-to-date return of 10.74% and a one-year return of 41.11%, with a cumulative return since inception of 664.13% [2] - The fund manager, Shu Wenyu, has a tenure of 10 years and 295 days, with the best fund return during this period being 76.71% and the worst being 2.91% [2]