证券时报·数据宝统计，截至8月19日，市场融资融券余额为21316.94亿元，较前一交易日的21023.09亿元增加293.85亿元。当日京沪深市场融资买入额为2925.62亿元，前一交易日为3266.31亿元；当日的融券卖出量为0.91亿股，前一交易日为1.04亿股。从个券来看，融资方面，共有3713只个券出现融资买入，3716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(%)430476海能技术3917.47244.631.340.22830839万通液压5280.11128.642.0116.41870726鸿智科技1061.66123.570.733.32300907康平科技12973.8281.493.1512.37870976视声智能1953.1879.971.640.68002911佛燃能源12982.0872.900.84-7.66873339恒太照明640.3365.260.402.00688775影石创新76454.4060.268.3611.40002364中恒电气54542.1658.243.9110.00603626科森科技27474.6758.234.329.98833943优机股份2055.4957.771.36-0.95603166福达股份17179.8456.251.442.35839946华阳变速399.0155.040.36-0.39832110雷特科技1213.6754.641.821.26301525儒竞科技25345.0154.334.8212.17836699海达尔1839.8751.951.50-1.99002164宁波东力30565.4850.055.304.89831961创远信科4213.5947.771.68-1.06831641格利尔213.2846.220.2217.75838262太湖雪552.0546.130.641.29835438戈碧迦6081.8944.090.857.01833030立方控股1331.9443.860.74-0.06603341龙旗科技25948.9743.762.26-1.98603809豪能股份21202.6042.301.475.49834021流金科技3621.6340.551.780.37600990四创电子61219.5040.296.4910.01839729永顺生物1015.2239.911.219.35831010凯添燃气3187.3839.401.229.61688519南亚新材28078.1638.191.811.27688084晶品特装18478.2637.805.06-0.40　　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(%)300912凯龙高科4005.87-37.722.881.25430685新芝生物687.12-36.620.670.05301560众捷汽车6061.92-35.506.37-5.07836717瑞星股份186.92-34.880.320.93833580科创新材396.74-32.770.471.21831167鑫汇科549.71-30.030.63-0.23836260中寰股份453.02-29.820.312.13871245威博液压789.24-24.750.587.28688290景业智能13260.75-24.422.173.18688651盛邦安全8448.91-22.867.04-0.59837092汉鑫科技1135.07-22.240.782.09920108宏海科技726.89-22.121.160.63301193家联科技2385.79-22.110.84-1.12300939秋田微12430.58-21.623.01-3.10872392佳合科技353.71-21.010.271.54603800洪田股份32792.05-20.853.25-10.00836957汉维科技158.96-20.630.231.71301512智信精密4120.56-20.073.550.73002459晶澳科技62569.60-18.591.59-1.16688520神州细胞33206.66-18.471.04-2.19688337普源精电11762.47-18.254.150.22301086鸿富瀚12457.81-18.183.842.39603179新泉股份15185.33-18.040.653.05601019山东出版6339.85-17.820.33-1.29836270天铭科技711.20-17.380.490.45601929吉视传媒34449.38-16.812.47-7.42836826盖世食品1259.37-16.271.642.00002536飞龙股份107461.14-16.056.030.52601606长城军工58732.13-15.451.211.07873167新赣江964.03-15.330.870.95（文章来源：证券时报网）