Zheng Xing Xing Ye Ri Bao·2025-08-04 08:29Market Overview - The optical and optoelectronic sector rose by 0.54% on August 4, with Baoming Technology leading the gains [1] - The Shanghai Composite Index closed at 3583.31, up 0.66%, while the Shenzhen Component Index closed at 11041.56, up 0.46% [1] Top Performers - Baoming Technology (002992) closed at 64.00, up 6.56% with a trading volume of 58,500 shares and a transaction value of 366 million [1] - Fuzhijing Technology (002222) closed at 40.39, up 5.02% with a trading volume of 215,700 shares and a transaction value of 860 million [1] - ST Yushun (002289) closed at 21.38, up 5.01% with a trading volume of 57,400 shares and a transaction value of 122 million [1] Underperformers - Chenfeng Technology (603685) closed at 15.21, down 3.37% with a trading volume of 78,300 shares [2] - Aorui Technology (600666) closed at 3.92, down 2.97% with a trading volume of 2,230,600 shares and a transaction value of 873 million [2] - Dongtian Micro (301183) closed at 64.59, down 1.90% with a trading volume of 83,800 shares and a transaction value of 539 million [2] Capital Flow - The optical and optoelectronic sector experienced a net outflow of 50.83 million from institutional investors, while retail investors saw a net inflow of 328 million [2] - The sector's overall capital flow indicates a mixed sentiment among different investor types [2] Individual Stock Capital Flow - O-film (002456) had a net inflow of 201 million from institutional investors, while it faced a net outflow of 60.02 million from retail investors [3] - Fuzhijing Technology (002222) saw a net inflow of 83.78 million from institutional investors but a net outflow of 90.93 million from retail investors [3] - Baoming Technology (002992) had a net inflow of 10.49 million from institutional investors, with a slight net outflow from retail investors [3]