Market Overview - The non-metal materials sector experienced a decline of 0.86% on October 30, with Bingyang Technology leading the drop [1] - The Shanghai Composite Index closed at 3986.9, down 0.73%, while the Shenzhen Component Index closed at 13532.13, down 1.16% [1] Stock Performance - Notable gainers included: - Liliang Diamond (301071) with a closing price of 42.00, up 3.86% and a trading volume of 359,600 shares, totaling 1.466 billion yuan [1] - Tianma New Materials (920971) closed at 37.62, up 3.12% with a trading volume of 108,700 shares, totaling 406 million yuan [1] - Significant decliners included: - Bingyang Technology (920675) closed at 12.13, down 5.23% with a trading volume of 70,500 shares, totaling 87.4716 million yuan [2] - Quartz Shares (603688) closed at 42.08, down 2.05% with a trading volume of 260,200 shares, totaling 1.117 billion yuan [2] Capital Flow - The non-metal materials sector saw a net outflow of 210 million yuan from institutional investors, while retail investors had a net inflow of 266 million yuan [2][3] - The capital flow for key stocks showed: - Liliang Diamond had a net outflow of 34.2155 million yuan from institutional investors, but a net inflow of 30.9384 million yuan from retail investors [3] - Longgao Co. (605086) experienced a net outflow of 1.7845 million yuan from institutional investors, with a net inflow of 1.0490 million yuan from retail investors [3]