Today, the SSE Science and Technology Innovation Board 50 Index fluctuated throughout the day and rose 0.07%, closing at 710.37 points. On the market, PCB concept stocks rose greatly, with Shengyi Electronics rising over 18%, Nanya New Material Technology rising over 10%, and Sanfeng New Science and Technology rising over 4%. In terms of news, Shengyi Electronics announced that it is expected to increase its net profit in the first half of the year by 876.88%-1049.27% year-on-year. Biological products and semiconductor sectors had mixed gains and losses, with Shenzhou Cell rising over 5%, Jiangsu Aidea Pharmaceutical and Innocare rising over 3%; Rongchang Biopharmaceuticals fell by more than 10%, and Innotek and Olin Biotech fell one after another. Verisilicon Microelectronics (Shanghai) Co., Ltd. rose over 4%, Jiangsu Changjiang Electronics Technology Co., Ltd. rose over 3%; Kangxi Communication and Aisentech fell more than 4%. In terms of individual stocks, Asia Vets concept stock Jingwei Hengrun approached the daily limit.