软件开发板块12月19日涨0.67%，经纬恒润领涨，主力资金净流出1.09亿元

Group 1 - The software development sector increased by 0.67% compared to the previous trading day, with Jingwei Hengrun leading the gains [1] - The Shanghai Composite Index closed at 3890.45, up 0.36%, while the Shenzhen Component Index closed at 13140.22, up 0.66% [1] Group 2 - In terms of capital flow, the software development sector experienced a net outflow of 1.09 billion yuan from institutional investors and 2.02 billion yuan from retail investors, while individual investors contributed a net inflow of 3.11 billion yuan [2]