Zheng Xing Xing Ye Ri Bao·2025-07-30 08:20Market Overview - On July 30, the non-metal materials sector rose by 0.54% compared to the previous trading day, with Longgao Co., Ltd. leading the gains [1] - The Shanghai Composite Index closed at 3615.72, up 0.17%, while the Shenzhen Component Index closed at 11203.03, down 0.77% [1] Stock Performance - Longgao Co., Ltd. (605086) closed at 29.01, up 4.24% with a trading volume of 60,600 shares and a turnover of 173 million yuan [1] - Suotong Development (603612) closed at 22.92, up 3.62% with a trading volume of 470,400 shares and a turnover of 1.065 billion yuan [1] - Tianma New Materials (838971) closed at 35.85, up 2.19% with a trading volume of 39,300 shares and a turnover of 140 million yuan [1] - Lianrui New Materials (688300) closed at 60.66, up 1.78% with a trading volume of 71,700 shares and a turnover of 430 million yuan [1] - Other notable stocks included: - Bingyang Technology (836675) down 0.08% - Qilu Huaxin (830832) down 0.11% - Changjiang Materials (001296) down 0.40% - Kuncai Technology (603826) down 0.50% - Dongfang Huizhen (832175) down 0.61% - Lili Diamond (301071) down 1.55% [1] Capital Flow - The non-metal materials sector saw a net inflow of 7.1304 million yuan from institutional investors, while retail investors had a net inflow of 14.4226 million yuan [2] - However, speculative funds experienced a net outflow of 21.553 million yuan [2] Individual Stock Capital Flow - Suotong Development (603612) had a net inflow of 56.3831 million yuan from institutional investors, but a net outflow of 79.8045 million yuan from retail investors [3] - Lianrui New Materials (688300) saw a net inflow of 10.9452 million yuan from institutional investors, with a net outflow of 33.3751 million yuan from speculative funds and a net inflow of 22.4299 million yuan from retail investors [3] - Longgao Co., Ltd. (605086) had a net inflow of 6.2057 million yuan from institutional investors, while retail investors contributed a net inflow of 130.85 thousand yuan [3] - Other stocks like Kuncai Technology (603826) and Lili Diamond (301071) experienced significant net outflows from institutional and speculative funds [3]