8.49亿主力资金净流入，太赫兹概念涨4.02%

Group 1 - The core concept of the news is the significant rise in the Terahertz sector, which increased by 4.02%, making it the top-performing sector for the day [1][2] - Within the Terahertz sector, 20 stocks experienced gains, with notable increases from Tianyin Electromechanical (17.21%), Yaguang Technology (9.69%), and Aerospace Electronics (5.42%) [1][2] - The Terahertz sector attracted a net inflow of 849 million yuan from major funds, with 13 stocks receiving net inflows, and 6 stocks exceeding 30 million yuan in net inflows [2][3] Group 2 - The leading stock in terms of net fund inflow was ZTE Corporation, which saw a net inflow of 654 million yuan, followed by Aerospace Electronics and Tianyin Electromechanical with net inflows of 191 million yuan and 151 million yuan, respectively [2][3] - The net inflow ratios for leading stocks included ZTE Corporation at 10.55%, Taihao Technology at 4.19%, and Tianyin Electromechanical at 3.50% [3][4] - The overall performance of the Terahertz sector was contrasted with other sectors, such as the dairy industry, which saw a decline of 0.85%, indicating a strong relative performance [2]