Group 1 - The pumped storage concept index rose by 2.32%, ranking 10th among concept sectors, with 51 stocks increasing in value [1][2] - Notable gainers in the pumped storage sector included Shaoyang Hydraulic, which hit a 20% limit up, and other companies like Dongfang Electric, Xue Ren Group, and Guoji Heavy Industry also reached their daily limit [1] - The top gainers in the sector were Fuan Co., Tebian Electric, and Guodian Nanzi, with increases of 7.93%, 6.58%, and 5.89% respectively [1] Group 2 - The pumped storage sector saw a net inflow of 2.965 billion yuan, with 42 stocks receiving net inflows, and 6 stocks exceeding 100 million yuan in net inflow [2] - The leading stock in terms of net inflow was Guoji Heavy Industry, which attracted 593 million yuan, followed by Dongfang Electric and Tebian Electric with net inflows of 581 million yuan and 543 million yuan respectively [2][3] - The net inflow ratios for Guoji Heavy Industry, Shaoyang Hydraulic, and Baobian Electric were 31.26%, 25.12%, and 24.95% respectively, indicating strong investor interest [3] Group 3 - The top stocks in the pumped storage sector based on trading volume included Guoji Heavy Industry, Shaoyang Hydraulic, and Baobian Electric, with respective trading volumes of 59.29 million yuan, 58.11 million yuan, and 37.37 million yuan [3][4] - Other notable stocks with significant trading activity included Fuan Co. and Dongfang Electric, which also showed strong performance in terms of trading volume and net inflow [4][5] - The overall market sentiment for the pumped storage sector appears positive, as indicated by the significant net inflows and the performance of key stocks [2][3]