Group 1 - The CPO concept stocks in the A-share market experienced a broad increase, with notable gains from several companies [1] - Changfei Fiber Optics saw an increase of over 8%, while Jepu Te rose by 5% [1] - Other companies such as Tiantong Co., Guangxun Technology, and Ruijie Networks increased by over 4% [1] Group 2 - The following are the performance details of key stocks: - Changfei Leishe (601869) increased by 8.37%, with a total market value of 172.5 billion and a year-to-date increase of 79.06% [2] - Jepu Te (688025) rose by 5.08%, with a market value of 21.2 billion and a year-to-date increase of 57.91% [2] - Tiantong Co. (600330) increased by 4.81%, with a market value of 22 billion and a year-to-date increase of 36.10% [2] - Guangxun Technology (002281) rose by 4.34%, with a market value of 59 billion and a year-to-date increase of 4.49% [2] - Ruijie Networks (301165) increased by 4.01%, with a market value of 63.8 billion and a year-to-date decrease of 9.72% [2] - Other companies also showed positive performance, with increases ranging from 1.22% to 3.74% [2]