Zheng Quan Shi Bao Wang·2025-05-20 08:35Group 1 - The Chengfei concept index declined by 1.16% as of the market close on May 20, with several stocks in the sector hitting the daily limit down, including Lijun Co. and Tongda Co. [1][2] - Among the stocks that increased, Boyun New Materials, Chengfei Integration, and Duopule saw gains of 10.01%, 7.65%, and 3.99% respectively [1][2] - The Chengfei concept sector experienced a net outflow of 2.131 billion yuan in main funds, with 30 stocks seeing net outflows, and five stocks exceeding 100 million yuan in outflows [2][3] Group 2 - Chengfei Integration led the outflow with a net outflow of 545.48 million yuan, followed by Zhonghang Chengfei and Lijun Co. with net outflows of 522.85 million yuan and 446.76 million yuan respectively [2][3] - The stocks with the highest net inflows included Boyun New Materials, Houp Co., and Duopule, with inflows of 167.42 million yuan, 35.27 million yuan, and 15.44 million yuan respectively [2][3] - The trading volume for Chengfei Integration was 29.10%, indicating significant trading activity despite the outflow [3]