Group 1 - The market focus stocks include Dayuan Pump Industry, which opened up 9.25% [1] - Hongtong Gas, related to Xinjiang and natural gas, opened up 4.91% with a performance of 9 days and 7 boards [1] - IDC power concept stocks such as Zhongzhou Electronics and Keli Ke saw significant increases, with Zhongzhou hitting the limit up and Keli Ke opening up 4.28% [1] Group 2 - Brain-computer interface concept stock Zhejiang Dongri opened up 2.48% with a performance of 5 days and 4 boards [1] - Liquid cooling server concept stock Feilong Co. opened up 6.35% with a performance of 3 boards [1] - Jintian Co. in the same sector hit the limit up, indicating strong market interest [1] Group 3 - The chip industry chain stock Chuzhou Development opened up with a limit up performance of 3 boards [1] - Guanshi Technology opened up 9.99% with a performance of 2 boards [1] - PCB sector stock Honghe Technology opened up 10.01%, showing robust market activity [1] Group 4 - Brokerage stock Changcheng Securities opened up 8.13% with a performance of 3 boards [1]