Zheng Xing Xing Ye Ri Bao·2025-09-12 08:37Market Overview - The communication equipment sector experienced a decline of 2.62% on September 12, with DingTong Technology leading the drop [1] - The Shanghai Composite Index closed at 3883.69, up 0.22%, while the Shenzhen Component Index closed at 12996.38, up 0.13% [1] Top Performers - TeFa Information (000070) saw a closing price of 11.53, with a significant increase of 10.02% and a trading volume of 621,600 shares, amounting to 702 million yuan [1] - Cambridge Technology (603083) closed at 101.49, up 10.00%, with a trading volume of 355,900 shares, totaling 3.534 billion yuan [1] - Tongding Interconnection (002491) closed at 6.62, up 9.97%, with a trading volume of 1,220,300 shares, amounting to 798 million yuan [1] Underperformers - DingTong Technology (688668) closed at 111.51, down 7.84%, with a trading volume of 94,000 shares, totaling 1.086 billion yuan [2] - Tianfu Communication (300394) closed at 185.96, down 6.36%, with a trading volume of 338,500 shares, amounting to 631.9 million yuan [2] - New Yisheng (300502) closed at 359.24, down 5.44%, with a trading volume of 448,400 shares, totaling 16.137 billion yuan [2] Capital Flow - The communication equipment sector saw a net outflow of 5.104 billion yuan from institutional investors, while retail investors contributed a net inflow of 3.118 billion yuan [2][3] - Notable net inflows from retail investors were observed in TeFa Information (000070) with 291 million yuan, and Cambridge Technology (603083) with 267 million yuan [3] Summary of Individual Stocks - TeFa Information had a net inflow of 291 million yuan from institutional investors, while retail investors showed a net outflow of 151 million yuan [3] - Cambridge Technology experienced a net inflow of 267 million yuan from institutional investors, with retail investors showing a net outflow of 64.26 million yuan [3] - Tongding Interconnection had a net inflow of 72.30 million yuan from institutional investors, while retail investors had a net outflow of 29.80 million yuan [3]