EOPTOLINK(300502) 证券时报网·2025-03-31 09:40Core Viewpoint - The Shanghai Composite Index fell by 0.46% on March 31, with the communication and home appliance sectors showing the highest gains of 0.58% and 0.37% respectively, while the power equipment and defense industries experienced the largest declines of 1.94% and 1.81% respectively [1] Market Overview - A total of 404.09 billion yuan in net outflow of capital was observed across the two markets, with five sectors experiencing net inflows. The public utilities sector led with a net inflow of 3.11 billion yuan, while the steel sector saw a net inflow of 2.83 billion yuan despite a decline of 1.45% [1] - The power equipment sector had the largest net outflow of capital, totaling 58.32 billion yuan, followed by the machinery sector with a net outflow of 53.11 billion yuan. Other sectors with significant outflows included electronics, non-bank financials, and computers [1] Communication Sector Performance - The communication sector rose by 0.58% with a net inflow of 2.11 billion yuan. Out of 127 stocks in this sector, 59 stocks increased in value, including one stock that hit the daily limit, while 67 stocks declined, with two hitting the daily limit [2] - Within the communication sector, 41 stocks experienced net inflows, with five stocks seeing inflows exceeding 100 million yuan. The top stock for net inflow was Aofei Data, with an inflow of 221 million yuan, followed by Xinyi Sheng and Yiyuan Communication with inflows of 215 million yuan and 122 million yuan respectively [2] Top Gainers in Communication Sector - The following stocks in the communication sector had notable gains: - Stock code 300738: Increased by 4.93% with a turnover rate of 11.01% and a main capital flow of 220.56 million yuan [3] - Stock code 300502 (Xinyi Sheng): Increased by 3.10% with a turnover rate of 3.87% and a main capital flow of 214.62 million yuan [4] - Stock code 603236 (Yiyuan Communication): Increased by 5.22% with a turnover rate of 6.13% and a main capital flow of 122.41 million yuan [4] Top Losers in Communication Sector - The following stocks in the communication sector experienced significant outflows: - Stock code 000063 (ZTE): Decreased by 1.33% with a turnover rate of 1.96% and a main capital outflow of 380.68 million yuan [5] - Stock code 600487 (Hengtong Optic-Electric): Decreased by 2.86% with a turnover rate of 2.38% and a main capital outflow of 79.21 million yuan [5] - Stock code 002115 (Sanwei Communication): Increased by 0.44% with a turnover rate of 20.91% and a main capital outflow of 74.09 million yuan [5]