Zheng Xing Xing Ye Ri Bao·2025-10-22 08:26Core Insights - The professional engineering sector saw a rise of 0.71% on October 22, with Zhonghua Rock and Soil leading the gains [1] - The Shanghai Composite Index closed at 3913.76, down 0.07%, while the Shenzhen Component Index closed at 12996.61, down 0.62% [1] Stock Performance - Zhonghua Rock and Soil (002542) closed at 4.46, up 10.12% with a trading volume of 1.99 million shares and a transaction value of 884 million [1] - China Aluminum International (601068) closed at 5.93, up 10.02% with a trading volume of 475,200 shares and a transaction value of 267 million [1] - Tianwo Technology (002564) closed at 9.02, up 10.00% with a trading volume of 555,900 shares and a transaction value of 490 million [1] - Other notable performers include Zhongyan Dadi (003001) up 7.06% and Beifang International (000065) up 5.44% [1] Capital Flow - The professional engineering sector experienced a net inflow of 413 million in main funds, while retail funds saw a net outflow of 742,620 [2][3] - Major stocks like Beifang International and Tianwo Technology attracted significant main fund inflows of 207 million and 110 million respectively [3] - Conversely, retail investors showed a net outflow from several stocks, including Tianwo Technology and Zhonghua Rock and Soil [3]