SUNSTONE(SH:603612) Zheng Xing Xing Ye Ri Bao·2025-09-09 08:31Market Overview - On September 9, the non-metal materials sector declined by 2.39%, with Suotong Development leading the drop [1] - The Shanghai Composite Index closed at 3807.29, down 0.51%, while the Shenzhen Component Index closed at 12510.6, down 1.23% [1] Stock Performance - Notable gainers included Ningxin New Materials, which rose by 6.99% to a closing price of 20.51, and Tianma New Materials, which increased by 0.78% to 40.10 [1] - Major decliners included Suotong Development, which fell by 4.35% to 27.70, and Changjiang Materials, which decreased by 3.26% to 25.48 [2] Trading Volume and Value - Ningxin New Materials had a trading volume of 247,800 shares and a transaction value of 521 million yuan [1] - Suotong Development recorded a trading volume of 490,500 shares with a transaction value of 1.386 billion yuan [2] Capital Flow Analysis - The non-metal materials sector experienced a net outflow of 225 million yuan from institutional investors, while retail investors saw a net inflow of 139 million yuan [2] - The capital flow for individual stocks showed that Suotong Development had a significant net outflow of 177.17 million yuan from institutional investors [3] Individual Stock Capital Flow - Longgao Co. had a net inflow of 368,500 yuan from retail investors despite a net outflow of 419,400 yuan from institutional investors [3] - Quartz Co. experienced a net outflow of 16.49 million yuan from institutional investors but a net inflow of 32.38 million yuan from retail investors [3]