Zheng Xing Xing Ye Ri Bao·2025-08-28 08:43Core Insights - The optical and optoelectronic sector experienced a 2.1% increase on August 28, with Aibisen leading the gains [1] - The Shanghai Composite Index closed at 3843.6, up 1.14%, while the Shenzhen Component Index closed at 12571.37, up 2.25% [1] Sector Performance - Aibisen (300389) saw a closing price of 14.70, with a significant increase of 20.00% and a trading volume of 258,100 shares [1] - Dongtian Micro (301183) closed at 111.03, up 15.38% with a trading volume of 182,900 shares [1] - Chenglai Optics (688502) closed at 475.34, up 13.71% with a trading volume of 21,800 shares [1] - Qiutian Micro (300939) closed at 40.00, up 12.17% with a trading volume of 186,100 shares [1] - Tengjing Technology (688195) closed at 69.26, up 10.53% with a trading volume of 155,600 shares [1] - Woge Optoelectronics (603773) closed at 34.32, up 10.00% with a trading volume of 127,700 shares [1] - Yanke Co. (300889) closed at 20.40, up 9.21% with a trading volume of 234,800 shares [1] - Yongxin Optics (603297) closed at 107.98, up 8.41% with a trading volume of 54,000 shares [1] - Fujing Technology (002222) closed at 46.07, up 7.51% with a trading volume of 274,200 shares [1] - Wavelength Optoelectronics (301421) closed at 89.60, up 6.62% with a trading volume of 83,300 shares [1] Capital Flow - The optical and optoelectronic sector saw a net outflow of 2.012 billion yuan from institutional investors, while retail investors contributed a net inflow of 1.947 billion yuan [3] - Speculative funds recorded a net inflow of 65.4 million yuan into the sector [3]