Group 1 - The brain-computer interface concept sector rose by 1.62%, ranking 6th among concept sectors, with 34 stocks increasing in value [1][2] - Leading stocks in the sector included Haige Communication, which hit the daily limit, and others like Meihao Medical and Mcland, which rose by 8.30%, 8.22%, and 7.21% respectively [1][2] - The sector experienced a net inflow of 678 million yuan from main funds, with 25 stocks receiving net inflows, and 7 stocks exceeding 50 million yuan in net inflow [2][3] Group 2 - Haige Communication had the highest net inflow of main funds at 724 million yuan, followed by Innovative Medical, Sanbo Brain Science, and Century Huatu, with net inflows of 166 million yuan, 77.5 million yuan, and 76 million yuan respectively [2][3] - The net inflow ratios for Haige Communication, Meihao Medical, and Innovative Medical were 21.95%, 11.38%, and 11.34% respectively, indicating strong investor interest [3][4] - Other notable stocks included Sanbo Brain Science with a 7.21% increase and a net inflow ratio of 6.28% [3][4]