Zheng Xing Xing Ye Ri Bao·2025-10-17 08:28Market Overview - The non-metal materials sector experienced a decline of 4.54% on October 17, with Tianma New Materials leading the drop [1] - The Shanghai Composite Index closed at 3839.76, down 1.95%, while the Shenzhen Component Index closed at 12688.94, down 3.04% [1] Individual Stock Performance - Tianma New Materials (code: 920971) closed at 36.72, down 9.11% with a trading volume of 56,700 shares and a transaction value of 219 million [1] - Strength Diamond (code: 301071) closed at 40.62, down 7.58% with a trading volume of 263,700 shares and a transaction value of 1.086 billion [1] - Quartz Shares (code: 603688) closed at 38.21, down 7.05% with a trading volume of 199,300 shares and a transaction value of 779 million [1] - Other notable declines include Lianrui New Materials (down 5.62%), Ningxin New Materials (down 3.15%), and Changjiang Materials (down 2.11%) [1] Capital Flow Analysis - The non-metal materials sector saw a net outflow of 225 million from main funds, while retail investors contributed a net inflow of 188 million [1] - The capital flow for individual stocks indicates that Longgao Co. (code: 605086) had a main fund net inflow of 7.38 million, while other stocks like Strength Diamond and Quartz Shares experienced significant net outflows of 56.80 million and 87.06 million respectively [2]