行业        2月市值份额％  3月市值份额％ 增减％
　　采掘业            61.84         70.24      8.4
　　信息技术          56.16         63.46      7.3
　　农林牧渔          60.71         66.64      5.93
　　机械设备          59.14         64.59      5.45
　　医药生物          56.98         61.75      4.77
　　金属非金属        59.96         64.02      4.06
　　制造业            63.7          67.51      3.81
　　电子              74.09         77.6       3.51
　　批发零售          47.99         51.06      3.07
　　食品饮料          48.41         50.88      2.47
　　运输仓储          70.55         72.99      2.44
　　水电煤气          75.45         77.31      1.86
　　社会服务          67.14         68.97      1.83
　　综合类            78.65         80.27      1.62
　　木材家具          86.35         87.71      1.36
　　房地产业          44.57         45.78      1.21
　　石化塑胶          80.73         81.5       0.77
　　传播文化          66.89         67.34      0.45
　　纺织服装          89.25         89.45      0.2
　　金融保险          60.97         60.44      -0.53
　　造纸印刷          75.62         75.02      -0.6
　　建筑业            79.26         78.53      -0.73
　　(来源：证券时报)