Zheng Xing Xing Ye Ri Bao·2025-08-15 08:37Market Performance - The metal new materials sector increased by 4.47% on August 15, with Tunan Co., Ltd. leading the gains [1] - The Shanghai Composite Index closed at 3696.77, up 0.83%, while the Shenzhen Component Index closed at 11634.67, up 1.6% [1] Key Stocks in Metal New Materials Sector - Tunan Co., Ltd. (300855) closed at 30.74, up 13.39% with a trading volume of 188,400 shares and a transaction value of 552 million [1] - Zhengke Materials (600255) closed at 4.74, up 9.98% with a trading volume of 5.53 million shares and a transaction value of 2.561 billion [1] - Zhongke Sanhuan (000970) closed at 15.11, up 9.97% with a trading volume of 202,180 shares and a transaction value of 3.008 billion [1] - Other notable stocks include Placo New Materials (300811) at 65.00, up 9.58%, and Xinlaifu (301323) at 61.23, up 8.22% [1] Capital Flow Analysis - The metal new materials sector saw a net inflow of 1.027 billion in main funds, while retail funds experienced a net outflow of 363 million [2] - The main funds showed a significant presence in stocks like Zhongke Sanhuan and Zhengke Materials, with net inflows of 623 million and 375 million respectively [3] Individual Stock Fund Flows - Zhongke Sanhuan (000970) had a main fund net inflow of 623 million, while retail funds saw a net outflow of 278 million [3] - Zhengke Materials (600255) experienced a main fund net inflow of 375 million, with retail funds also showing a net outflow of 193 million [3] - Tunan Co., Ltd. (300855) had a main fund net inflow of 254 million, while retail funds experienced a net outflow of 925 million [3]