证券时报·数据宝统计，截至3月21日，市场融资融券余额为19374.20亿元，较前一交易日的19518.70亿元减少144.50亿元。当日京沪深市场融资买入额为1376.06亿元，前一交易日为1367.04亿元；当日的融券卖出量为0.59亿股，前一交易日为0.56亿股。从个券来看，融资方面，共有3665只个券出现融资买入，3676只个券出现融资偿还。其中，融资余额环比增幅前30和环比降幅前30的股票如下：（数据宝）

　　A股融资余额环比增加前30股一览

证券代码证券简称融资余额（万元）环比增长（%）占流通市值比例（%）涨跌幅(%)833230欧康医药455.7166.860.76-5.78001239永达股份10483.1157.976.2110.00920082方正阀门1024.6142.761.227.67603776永安行28437.9940.354.8310.01833030立方控股1514.7839.180.76-11.89832651天罡股份638.1338.681.49-0.88301136招标股份9076.2937.722.3610.10688273麦澜德5970.7935.295.70-8.61601608中信重工65057.3529.572.7210.04870508丰安股份316.2529.500.45-15.36688225亚信安全16515.2429.323.05-6.42837174宏裕包材542.0627.440.46-2.57002863今飞凯达15513.8026.174.71-1.44300878维康药业4916.1924.091.9012.09688283坤恒顺维2309.6723.961.04-3.57000601韶能股份13263.9722.562.262.65688206概伦电子17779.4121.964.014.29837023芭薇股份803.2220.501.38-5.83600876凯盛新能9227.6520.462.154.73002342巨力索具19699.1319.683.237.39301111粤万年青6527.4318.762.41-2.37688608恒玄科技53913.1017.811.30-7.18688678福立旺27000.8517.683.74-3.56301053远信工业6090.5317.502.62-8.13871970大禹生物168.3217.450.34-13.45002483润邦股份19664.3617.232.847.72001379腾达科技8265.1517.114.944.01301083百胜智能6613.8117.074.35-2.79873339恒太照明360.0716.390.201.96832978开特股份6643.2716.322.96-9.06

　　A股融资余额环比下降前30股一览

证券代码证券简称融资余额（万元）环比降幅（%）占流通市值比例（%）涨跌幅(%)836504博迅生物117.76-54.010.33-6.63872925锦好医疗418.16-53.180.53-11.24430090同辉信息426.91-40.340.36-7.07920106林泰新材648.20-39.630.63-6.15000408藏格矿业81878.89-31.291.44-1.90873806云星宇4620.00-28.691.00-4.00831039国义招标432.60-28.310.31-6.23688636智明达8672.17-26.601.921.21838810春光药装135.39-25.910.16-10.28831689克莱特1617.78-25.110.8819.93832786骑士乳业2348.62-23.342.30-5.19834682球冠电缆1527.10-23.090.905.53300930屹通新材6514.03-21.584.701.94873833美心翼申1189.63-21.271.70-4.41603881数据港105108.81-21.204.70-8.50600350山东高速2974.18-21.090.063.08688220翱捷科技50366.16-20.841.47-10.13838262太湖雪409.58-20.600.67-4.98002706良信股份19417.57-20.592.252.95301331恩威医药4695.09-20.275.0411.27870357雅葆轩1251.84-20.201.24-6.24688259创耀科技27783.05-19.515.28-10.33603596伯特利19317.11-18.830.51-4.98871263莱赛激光904.80-18.041.07-2.55430476海能技术684.67-17.570.81-0.44002165红宝丽23073.41-17.475.7910.04300328宜安科技61868.23-17.387.93-7.79832175东方碳素814.41-17.011.15-6.00600782新钢股份13130.95-17.000.911.10002261拓维信息194996.23-16.975.40-8.98