贸易板块1月28日涨2.4%，中信金属领涨，主力资金净流入2.39亿元

Core Insights - The trade sector experienced a 2.4% increase on January 28, with CITIC Metal leading the gains [1] - The Shanghai Composite Index closed at 4151.24, up 0.27%, while the Shenzhen Component Index closed at 14342.9, up 0.09% [1] Trade Sector Performance - CITIC Metal (601061) closed at 17.05, up 7.57%, with a trading volume of 581,800 shares and a transaction value of 966 million [1] - Wumart Development (600058) closed at 15.80, up 5.83%, with a trading volume of 846,200 shares and a transaction value of 1.294 billion [1] - Yiyaton (002183) closed at 6.19, up 5.27%, with a trading volume of 2,979,900 shares and a transaction value of 1.820 billion [1] - Other notable performances include Shisuo Huihong (600981) at 3.42, up 2.09%, and Zhongcheng Co. (000151) at 13.61, up 0.96% [1] Capital Flow Analysis - The trade sector saw a net inflow of 239 million from institutional investors, while retail investors experienced a net outflow of 155 million [2][3] - Major stocks like Wumart Development and CITIC Metal had significant net inflows of 90.7 million and 89.2 million respectively, despite retail outflows [3] - Yiyaton also saw a net inflow of 83.6 million from institutional investors, indicating strong institutional interest [3]