Zheng Quan Shi Bao Wang·2025-07-21 09:43Group 1 - The underground pipeline concept sector rose by 4.05%, ranking 6th among concept sectors, with 79 stocks increasing, including 20% limit-up stocks like Guanlong Energy and Deepwater Institute [1][2] - Notable gainers in the sector included Feilu Co., Huawi Design, and Energy Iron Han, which rose by 13.32%, 9.09%, and 7.66% respectively [1] - The sector saw a net inflow of 875 million yuan from main funds, with 51 stocks receiving net inflows, and 10 stocks exceeding 50 million yuan in net inflow [2][3] Group 2 - The top net inflow stocks included Zhonghua Rock and Qinglong Pipeline, with net inflows of 195 million yuan and 182 million yuan respectively [2][3] - The highest net inflow ratio was observed in *ST Zhengping at 68.96%, followed by Zhonghua Rock at 44.30% and China Railway Industry at 36.82% [3][5] - The underground pipeline concept sector's performance was supported by significant trading volumes, with several stocks showing high turnover rates [4][5]