国有大型银行板块1月19日跌1.12%，农业银行领跌，主力资金净流出4.07亿元

Group 1 - The core viewpoint of the news is that the state-owned large bank sector experienced a decline of 1.12% on January 19, with Agricultural Bank leading the drop [1] - The Shanghai Composite Index closed at 4114.0, up 0.29%, while the Shenzhen Component Index closed at 14294.05, up 0.09% [1] - The trading performance of individual stocks in the state-owned large bank sector showed varied results, with Agricultural Bank down 1.53% and Industrial and Commercial Bank down 1.05% [1] Group 2 - The net outflow of main funds from the state-owned large bank sector was 407 million yuan, while retail investors saw a net inflow of 539 million yuan [1] - The detailed fund flow data indicates that the Agricultural Bank had a significant net outflow of 35.37 million yuan from main funds, but a net inflow of 73.72 million yuan from retail investors [2] - The overall trend shows that while main and speculative funds are withdrawing, retail investors are increasing their positions in certain banks [2]