Core Insights - The non-metal materials sector increased by 1.1% on October 21, with Bingyang Technology leading the gains [1] - The Shanghai Composite Index closed at 3916.33, up 1.36%, while the Shenzhen Component Index closed at 13077.32, up 2.06% [1] Stock Performance - Bingyang Technology (code: 920675) closed at 12.09, with a rise of 7.66% and a trading volume of 43,700 shares, amounting to 51.31 million yuan [1] - Tianma New Materials (code: 920971) saw a closing price of 35.50, up 3.53%, with a trading volume of 43,000 shares and a turnover of 150 million yuan [1] - Longjiang Materials (code: 001296) closed at 23.48, increasing by 3.07%, with a trading volume of 49,100 shares and a turnover of 115 million yuan [1] - Other notable stocks include Qilu Huaxin (code: 920832) at 8.38 (+2.82%), and Quartz Shares (code: 603688) at 38.98 (+2.26%) [1] Capital Flow - The non-metal materials sector experienced a net outflow of 52.73 million yuan from institutional investors, while retail investors saw a net inflow of 72.75 million yuan [2] - The overall capital flow indicates a mixed sentiment, with institutional investors withdrawing funds while retail investors were more active [2] Detailed Capital Flow Analysis - Quartz Shares (code: 603688) had a net inflow of 34.63 million yuan from institutional investors, but a net outflow of 28.47 million yuan from retail investors [3] - Longjiang Materials (code: 001296) experienced a net inflow of 7.80 million yuan from institutional investors, while retail investors had a net outflow of 5.81 million yuan [3] - Strength Diamond (code: 301071) faced a significant net outflow of 124 million yuan from institutional investors, despite a net inflow of 71.25 million yuan from retail investors [3]

Market 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]