Sou Hu Cai Jing·2025-10-31 08:52Market Overview - The futures concept sector declined by 0.4% compared to the previous trading day, with Yuan Da Environmental leading the decline [1] - The Shanghai Composite Index closed at 3954.79, down 0.81%, while the Shenzhen Component Index closed at 13378.21, down 1.14% [1] Stock Performance - Notable gainers in the futures concept sector included: - Meihu Co., Ltd. (code: 6163309) with a closing price of 36.49, up 4.08% and a trading volume of 177,800 shares, totaling 644 million yuan [1] - Yimeng Honghua (code: 600128) closed at 11.00, up 3.09% with a trading volume of 106,000 shares, totaling 11.7 million yuan [1] - Zhongke Jincai (code: 002657) closed at 30.84, up 2.59% with a trading volume of 239,900 shares, totaling 738 million yuan [1] - Major decliners included: - Yuan Da Environmental (code: 600292) closed at 13.36, down 4.50% with a trading volume of 503,500 shares, totaling 676 million yuan [2] - Zhongjin Lingnan (code: 000060) closed at 5.51, down 2.82% with a trading volume of 1,495,700 shares, totaling 836 million yuan [2] - Hongqiang Securities (code: 601236) closed at 8.77, down 2.56% with a trading volume of 365,200 shares, totaling 323 million yuan [2] Capital Flow - The futures concept sector experienced a net outflow of 1.321 billion yuan from main funds, while retail investors saw a net inflow of 996 million yuan [2] - Notable capital flows included: - Dahan Technology (code: 600288) with a main fund net inflow of 41.5 million yuan, but a net outflow from retail investors of 41.6 million yuan [3] - Zhongke Jincai (code: 002657) had a main fund net inflow of 29.6 million yuan, with retail investors contributing a net inflow of 18.4 million yuan [3]