软件开发板块2月3日涨2.26%，国能日新领涨，主力资金净流出5.07亿元

Group 1 - The software development sector increased by 2.26% on February 3, with Guoneng Rixin leading the gains [1] - The Shanghai Composite Index closed at 4067.74, up 1.29%, while the Shenzhen Component Index closed at 14127.1, up 2.19% [1] - Notable stock performances included Guoneng Rixin with a closing price of 74.64, up 10.61%, and Xinghuan Technology at 198.50, up 8.82% [1] Group 2 - The software development sector experienced a net outflow of 507 million yuan from institutional investors, while retail investors saw a net inflow of 751 million yuan [2] - Key stocks with significant net inflows from retail investors included Weining Health with 52.54 million yuan and Jinxian Modern with 45.04 million yuan [3] - Major stocks like Keda Xunfei and Tonghuashun faced net outflows from institutional and retail investors, indicating mixed investor sentiment [3]