Zheng Quan Shi Bao Wang·2026-01-20 08:49Group 1 - The terahertz concept sector experienced a decline of 3.15%, ranking among the top declines in concept sectors, with major declines seen in companies like Shenglu Communication, Tianyin Machinery, and Leike Defense [1] - Among the terahertz concept stocks, only four saw price increases, with Hengtong Optic-Electric rising by 2.58%, Changfei Fiber by 0.48%, and Phoenix Optical by 0.28% [1] - The terahertz concept sector faced a net outflow of 3.063 billion yuan, with 15 stocks experiencing net outflows, and 10 stocks seeing outflows exceeding 100 million yuan [2] Group 2 - The leading stock in terms of net outflow was ZTE Corporation, with a net outflow of 781 million yuan, followed by Haige Communication, Tianyin Machinery, and Saiwei Electronics with net outflows of 560 million yuan, 445 million yuan, and 407 million yuan respectively [2] - The stocks with the highest net inflows included Hengtong Optic-Electric, Changfei Fiber, and Taihao Technology, with net inflows of 253 million yuan, 71.9 million yuan, and 7.57 million yuan respectively [2] - The terahertz concept stocks with significant declines included ZTE Corporation (-2.43%), Haige Communication (-6.70%), Tianyin Machinery (-7.74%), and Leike Defense (-7.67%) [3]