SUNSTONE(SH:603612) Zheng Xing Xing Ye Ri Bao·2025-09-15 08:43Market Overview - On September 15, the non-metal materials sector declined by 1.59%, with Suotong Development leading the drop [1] - The Shanghai Composite Index closed at 3860.5, down 0.26%, while the Shenzhen Component Index closed at 13005.77, up 0.63% [1] Stock Performance - Notable gainers included Tianma New Materials, which rose by 1.44% to a closing price of 39.36, and Qilu Huaxin, which increased by 1.25% to 8.88 [1] - Conversely, Suotong Development fell by 3.83% to 27.38, and Longgao Co. dropped by 1.30% to 25.87 [2] Trading Volume and Value - Tianma New Materials had a trading volume of 30,200 hands and a transaction value of 118 million yuan [1] - Suotong Development recorded a trading volume of 320,500 hands with a transaction value of 896 million yuan [2] Capital Flow Analysis - The non-metal materials sector experienced a net outflow of 162 million yuan from institutional investors, while retail investors saw a net inflow of 104 million yuan [2] - The capital flow for individual stocks showed that Shiyin Co. had a significant net outflow of 1,041.7 million yuan from institutional investors [3] Individual Stock Capital Flow - Shiyin Co. had a net outflow of 1,041.7 million yuan from institutional investors, while retail investors contributed a net inflow of 8,178.17 million yuan [3] - Longgao Co. saw a net outflow of 333.93 million yuan from institutional investors, with a small net inflow from retail investors of 151.12 million yuan [3]