
Group 1 - The terahertz concept sector experienced a decline of 2.38%, ranking among the top declines in concept sectors, with major declines seen in companies like Juguang Technology, Sichuang Electronics, and Leike Defense [1][2] - Among the terahertz concept stocks, only two stocks saw price increases, with Tianhai Defense rising by 1.63% and Hengtong Optic-Electric increasing by 0.98% [1][2] - The terahertz concept sector faced a net outflow of 1.417 billion yuan, with 21 stocks experiencing net outflows, and six stocks seeing outflows exceeding 50 million yuan [2] Group 2 - The leading stocks in terms of net outflow included ZTE Corporation with a net outflow of 284 million yuan, followed by Tianhai Defense, Haige Communication, and Sichuang Electronics with net outflows of 211 million yuan, 187 million yuan, and 174 million yuan respectively [2][3] - The stocks with the highest net inflow included Hengtong Optic-Electric and Daheng Technology, with net inflows of 24.13 million yuan and 0.5885 million yuan respectively [2][3] - The terahertz concept sector's outflow list highlighted ZTE Corporation, Tianhai Defense, and Haige Communication as the top three stocks with significant outflows [2][3]