通信设备板块9月9日跌1.95%，东土科技领跌，主力资金净流出52.44亿元

Market Overview - On September 9, the communication equipment sector declined by 1.95%, with Dongtu Technology leading the drop [1] - The Shanghai Composite Index closed at 3807.29, down 0.51%, while the Shenzhen Component Index closed at 12510.6, down 1.23% [1] Stock Performance - Notable gainers in the communication equipment sector included: - Changfei Optical Fiber (601869) with a closing price of 88.71, up 5.64% [1] - Changying Technology (688143) with a closing price of 45.44, up 3.86% [1] - Wuhan Fangu (002194) with a closing price of 14.92, up 2.19% [1] - Major decliners included: - Dongtu Technology (300353) with a closing price of 24.08, down 5.31% [2] - ST Gaohong (000851) with a closing price of 0.72, down 5.26% [2] - Cheng Tian Wei Ye (300689) with a closing price of 54.38, down 4.93% [2] Capital Flow - The communication equipment sector experienced a net outflow of 5.244 billion yuan from institutional investors, while retail investors saw a net inflow of 4.078 billion yuan [2][3] - Key stocks with significant capital flow included: - Hengtong Optic-Electric (600487) with a net inflow of 1.39 billion yuan from institutional investors [3] - Jianqiao Technology (603083) with a net inflow of 108 million yuan from institutional investors [3] - Changfei Optical Fiber (601869) with a net inflow of 88.68 million yuan from institutional investors [3]