证券时报·数据宝统计，截至10月21日，市场融资融券余额为24442.71亿元，较前一交易日的24299.98亿元增加142.73亿元。当日京沪深市场融资买入额为2171.21亿元，前一交易日为1859.89亿元；当日的融券卖出量为1.17亿股，前一交易日为1.30亿股。从个券来看，融资方面，共有3731只个券出现融资买入，3734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(%)600698湖南天雁1183.50301.700.141.52002173创新医疗11898.61121.421.21-1.09000558天府文旅1666.01102.540.241.48002755奥赛康1351.5284.350.07-1.17605277新亚电子1216.1779.780.161.22301158德石股份13804.3158.503.6720.02688498源杰科技95438.0751.183.1920.00300395菲利华124345.2344.183.0114.17920942恒立钻具4463.2643.612.2822.66301468博盈特焊10425.8738.104.014.33603299苏盐井神17374.2635.701.923.84301232飞沃科技15645.0932.847.99-4.22688310迈得医疗6103.7431.021.756.43301377鼎泰高科23357.3930.124.184.58605399晨光新材8127.3828.441.95-2.12920925锦好医疗480.8927.990.27-2.24301292海科新源17500.0226.847.02-6.18920839万通液压8312.8226.442.2710.61002320海峡股份81944.7826.082.492.80920018宏远股份1304.2124.401.43-3.78920508殷图网联641.9623.950.772.60300179四方达34780.9123.705.9311.10000729燕京啤酒23291.7823.680.78-4.56920039国义招标1439.0223.550.704.72688381帝奥微25376.6423.014.465.66603171税友股份11910.4122.550.614.37920030德众汽车833.1522.380.993.58920896旺成科技770.2321.910.724.36920725惠丰钻石2064.2421.731.203.87920088科力股份2624.0721.623.083.43　　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(%)920198微创光电358.44-35.230.3930.00920158长江能科299.77-28.340.425.64301392汇成真空35716.61-25.426.170.91688592司南导航11873.65-22.567.22-5.26600617国新能源14582.96-21.961.775.45600293三峡新材18659.04-21.124.7310.03600917重庆燃气6736.80-20.390.72-1.64601628中国人寿75059.49-19.560.083.51688772珠海冠宇45894.06-19.131.563.83920270天铭科技1030.36-17.370.692.91001309德明利106714.55-16.943.524.50920005鼎佳精密822.03-16.540.942.27000969安泰科技107849.86-15.515.066.23603686福龙马62712.53-14.996.019.99920547无锡晶海1075.35-13.831.074.37002311海大集团16672.50-13.680.172.80301061匠心家居2261.67-13.080.171.03301121紫建电子15334.08-12.966.456.94603138海量数据15540.89-12.883.421.58301105鸿铭股份3594.85-12.764.61-2.57920717瑞星股份458.98-12.420.814.34000021深科技199213.65-11.874.494.00601011宝泰隆27481.94-11.853.50-6.82920694中裕科技1123.57-11.680.7229.96300904威力传动5870.21-11.383.312.32301021英诺激光18320.69-11.302.8911.80301137哈焊华通21735.25-11.272.72-0.16600933爱柯迪43404.45-11.102.002.20688367工大高科5678.74-10.782.980.37301607富特科技11918.48-10.732.48-0.78（文章来源：证券时报网）