
Group 1 - The Co-Packaged Optics (CPO) concept has seen an increase of 3.34%, ranking third among concept sectors, with 84 stocks rising, including Changfei Fiber, Guanghe Technology, and Cambridge Technology hitting the daily limit [1][2] - Notable gainers in the CPO sector include Shengyi Electronics, Shijia Photon, and Dekeli, which rose by 13.86%, 11.10%, and 10.05% respectively [1] - The sector experienced a net inflow of 4.047 billion yuan from main funds, with 56 stocks receiving net inflows, and 13 stocks exceeding 100 million yuan in net inflows [2] Group 2 - The top net inflow stock was Xinyi Sheng, with a net inflow of 568 million yuan, followed by Dongshan Precision, Luxshare Precision, and Cambridge Technology with net inflows of 516 million yuan, 433 million yuan, and 389 million yuan respectively [2] - The net inflow ratios for leading stocks in the CPO sector include Cambridge Technology at 19.98%, Guanghe Technology at 19.08%, and Qingshan Paper at 17.23% [3] - The trading volume and turnover rates for key stocks in the CPO sector indicate strong investor interest, with significant movements in stock prices and trading activity [4][5]