Zheng Quan Shi Bao Wang·2026-01-26 09:22Group 1 - The terahertz concept sector experienced a decline of 4.42%, ranking among the top declines in concept sectors, with major stocks like Haige Communication and Yaguang Technology seeing significant drops [1][2] - Among the terahertz concept stocks, Haige Communication hit the daily limit down, while other notable decliners included Shaanxi Huada and Tianyin Electromechanical [1] - Conversely, stocks such as Changfei Optical Fiber and Hengtong Optic-Electric saw gains of 10.00% and 9.15%, respectively, indicating a mixed performance within the sector [1][3] Group 2 - The terahertz concept sector faced a net outflow of 6.157 billion yuan, with 18 stocks experiencing net outflows, and 10 stocks seeing outflows exceeding 100 million yuan [2] - Aerospace Electronics led the outflow with a net withdrawal of 4.051 billion yuan, followed by Haige Communication and Saiwei Electronics with outflows of 998 million yuan and 622 million yuan, respectively [2] - In contrast, Hengtong Optic-Electric and Changfei Optical Fiber attracted net inflows of 826 million yuan and 603 million yuan, respectively, highlighting a divergence in investor sentiment within the sector [2][3]