证券时报·数据宝统计，截至（10月21日）收盘，沪指报3268.11点，涨6.55点，涨幅为0.20%；深成指报10470.91点，涨113.24点，涨幅为1.09%；创业板指报2210.34点，涨15.23点，涨幅为0.69%。个股方面，今日300只A股换手率超过20%，其中，C托普、海达尔等10只个股换手率达五成以上，半数筹码易主。（数据宝）
　　10月21日两市换手率居前个股一览
证券代码证券简称收盘价（元）换手率（%）涨跌幅（%）301556C托普112.0067.14-23.30836699海达尔40.4061.2413.74870726鸿智科技20.5458.7130.00301251威尔高40.5058.2311.69920019铜冠矿建30.5055.767.39301182凯旺科技48.5554.5420.00831526凯华材料52.2653.6530.00301357北方长龙45.3153.356.41301611珂玛科技74.9652.693.59301522C上大54.9652.63-6.86300077国民技术32.0249.4312.04300786国林科技19.3848.2120.00301161唯万密封22.9847.960.79872953国子软件38.5447.2515.39873693阿为特55.7447.0429.99301568思泰克39.0647.0311.95839792东和新材12.4646.6729.93688721龙图光罩57.0245.857.42873570坤博精工46.5945.3329.99837006晟楠科技23.1444.9130.00920016中草香料32.0044.328.73836260中寰股份11.5344.198.47300120经纬辉开13.1443.910.61833346威贸电子25.9743.7829.98833030立方控股21.3343.7225.18301421波长光电62.7042.922.84833873中设咨询6.2442.3110.44833781瑞奇智造9.2842.2218.67873806云星宇17.7341.1229.99871263莱赛激光16.9440.7428.92600678四川金顶8.8240.69-7.16301571国科天成57.4940.640.17836961西磁科技18.0939.6519.25300991创益通21.0639.103.69870656海昇药业19.9939.0613.32833943优机股份21.2639.0329.95300311任子行8.1238.480.87835207众诚科技24.2038.4829.97873706铁拓机械12.2138.0610.80838701豪声电子40.5337.4426.26301392汇成真空60.6936.997.78001279强邦新材62.1836.71-1.24839680广道数字34.6836.3324.30300339润和软件70.0136.0011.22301226祥明智能26.2635.9020.02300045华力创通32.7035.7216.41300731科创新源25.1535.7111.18833075柏星龙18.9935.6221.03835438戈碧迦24.3035.5718.88832662方盛股份18.1435.5529.94832802保丽洁14.2735.4712.81000004国华网安23.4235.386.60301586佳力奇59.7035.348.96301049超越科技30.2035.333.35300348长亮科技20.2535.201.40301183东田微57.5735.110.24872351华光源海9.0034.3812.50300468四方精创28.6034.3415.79300355蒙草生态5.7534.226.68836504博迅生物18.9834.187.96920002万达轴承63.7134.0619.49300563神宇股份60.3033.87-1.66300411金盾股份16.4233.5420.03300499高澜股份14.3433.546.62832149利尔达9.1733.2529.89301208中亦科技47.7933.246.37301169零点有数49.5033.037.19301529福赛科技41.0233.0020.01300139晓程科技21.2532.823.16301128强瑞技术63.9432.683.61688720艾森股份44.1932.663.06301489思泉新材78.7632.595.32300093金刚光伏21.0632.2720.00300663科蓝软件27.8332.226.63301366一博科技51.9132.1320.00301132满坤科技30.4831.812.45920008成电光信54.2531.7816.07833394民士达22.5631.7329.95838030德众汽车5.7631.677.46688695中创股份37.6931.620.99300293蓝英装备32.2631.59-0.43688693锴威特36.1731.576.01001379腾达科技24.1531.476.11000628高新发展63.9031.422.58870357雅葆轩26.1031.4011.06002725跃岭股份10.9131.409.98300302同有科技20.2131.3920.01300719安达维尔26.5731.3615.07920099瑞华技术35.1531.369.40430090同辉信息9.6231.2930.00301073君亭酒店25.5931.2518.97001239永达股份16.7931.180.54300561汇金科技21.4930.974.22300177中海达13.3830.7513.87301136招标股份15.9830.7314.96301036双乐股份64.0030.734.56833533骏创科技22.1930.6217.53300865大宏立42.1030.5715.03430198微创光电11.3430.5415.83688629华丰科技40.7130.506.26832786骑士乳业7.7330.4910.74837592华信永道80.8830.479.37003015日久光电16.6230.459.99000158常山北明26.3630.305.78837092汉鑫科技54.1430.2229.99836149旭杰科技10.6930.1110.55300180华峰超纤10.9930.0314.60002253川大智胜15.8430.029.09872931无锡鼎邦10.9330.0018.29300184力源信息12.7229.9420.00300287飞利信5.8429.9017.51301551无线传媒76.6029.80-1.23301369联动科技63.2229.600.33002457青龙管业13.8029.60-8.00688691灿芯股份60.3329.536.42688709成都华微23.3029.438.37300107建新股份11.7229.4211.30300063天龙集团7.3229.322.09871478巨能股份17.3729.239.38300956英力股份19.4029.225.43831906舜宇精工18.9829.089.08839493并行科技72.8029.0830.00870976视声智能18.8229.0613.72300056中创环保16.4328.772.43873726卓兆点胶26.2028.4221.52300364中文在线28.0528.319.53301221光庭信息53.9628.308.75300050世纪鼎利8.2328.1514.46600622光大嘉宝3.8528.14-10.05601162天风证券4.9928.034.61301600慧翰股份73.4028.02-2.00300576容大感光51.9827.88-2.57300085银之杰44.9427.86-1.77002845同兴达14.9027.665.67600318新力金融8.4727.591.44300427红相股份9.1627.544.21301578辰奕智能59.3027.546.27002094青岛金王4.3927.4310.03300458全志科技40.6227.40-2.10300690双一科技26.0027.3814.64300047天源迪科16.3927.327.69301178天亿马31.6627.306.60832491奥迪威23.5627.2729.95300052中青宝24.0027.2520.00300310宜通世纪9.1527.078.80831641格利尔12.9927.0512.56430564天润科技21.1726.9729.96300377赢时胜14.3126.932.36300429强力新材14.5926.92-1.35834021流金科技6.3526.8127.00300709精研科技50.4026.80-0.32301326捷邦科技77.5926.7820.00301106骏成科技34.4226.75-3.85603350安乃达30.8826.595.39300925法本信息29.1726.553.44837046亿能电力11.1526.519.64300990同飞股份37.6426.502.06873169七丰精工11.7526.2829.83300623捷捷微电46.4926.2310.48301517陕西华达57.5226.186.93833230欧康医药17.1226.0429.99300379东方通20.1026.047.14300102乾照光电12.0125.9019.98836717瑞星股份7.8825.758.69836826盖世食品8.9025.7514.84002199东晶电子10.4925.719.96871981晶赛科技48.2025.6129.99835179凯德石英39.5525.5629.97603261立航科技31.8825.524.39003026中晶科技39.6125.522.56301197工大科雅19.4325.356.29300130新国都33.9725.3319.99300245天玑科技13.4125.326.43300541先进数通15.2525.317.32301171易点天下20.6325.2913.98836720吉冈精密13.2925.2913.49837821则成电子38.8525.2711.77600203福日电子10.1225.26-2.03300936中英科技51.0125.178.35001298好上好31.7725.17-0.35832876慧为智能34.0825.1229.98300169天晟新材9.7125.10-0.72833751惠同新材13.2025.0618.92832885星辰科技15.6024.9730.00002708光洋股份8.8024.874.76833284灵鸽科技9.3524.6625.67300975商络电子11.9224.5711.72300337银邦股份18.3924.544.43002628成都路桥4.4824.5110.07301606绿联科技36.0224.453.18832651天罡股份18.8524.3724.59836247华密新材24.0624.3129.98002897意华股份43.3024.281.19002231奥维通信6.6724.2510.07301618长联科技127.5724.18-0.34000702正虹科技8.3524.189.87300284苏交科15.5024.1719.97300192科德教育15.5124.156.31832171志晟信息16.7624.1422.34300333兆日科技12.0224.116.09871753天纺标41.2824.0710.97301236软通动力72.5724.061.37300552万集科技42.0523.955.41300324旋极信息4.0723.9316.95301338凯格精机35.5523.730.14833580科创新材11.1523.7029.95872895花溪科技12.7423.6917.64300831派瑞股份16.5023.683.25301091深城交53.6223.6519.82301567贝隆精密51.3023.522.37300465高伟达15.7923.509.65300554三超新材26.1023.508.39873679前进科技16.5123.4710.73835579机科股份19.3023.4314.20301152天力锂能36.2523.427.89300570太辰光47.1623.4120.00300469信息发展28.3823.2512.93831175派诺科技17.2223.2221.27300460惠伦晶体16.6923.161.58301608博实结73.6023.16-1.74301566达利凯普19.8623.124.09300061旗天科技15.8923.105.51301172君逸数码37.2023.092.73301099雅创电子45.5223.082.38603375盛景微39.5423.012.67836239长虹能源40.9123.007.46301536星宸科技52.5822.9919.99301316慧博云通23.8722.925.95835985海泰新能8.8222.8823.36301213观想科技43.1022.795.05300010豆神教育5.7022.751.06301508中机认检39.5622.713.42839946华阳变速7.7822.6213.58873833美心翼申11.1122.617.66300380安硕信息42.6522.525.20301577美信科技60.2422.522.10300068南都电源20.4822.446.17301067显盈科技27.5722.406.04300374中铁装配19.4722.388.59300872天阳科技20.1522.329.81835892中科美菱14.4422.3116.45301607富特科技44.9722.290.90600843上工申贝9.3022.2510.06688502茂莱光学181.0022.1913.25300565科信技术15.7422.1810.61300551古鳌科技14.0022.160.86835857百甲科技6.5122.156.72920118太湖远大26.6122.057.73301516中远通19.9522.013.80873665科强股份11.0921.9217.35603660苏州科达6.7721.82-8.64830896旺成科技10.5921.8110.20300674宇信科技27.4221.804.22839719宁新新材11.1621.7917.97300594朗进科技21.3721.7919.99300826测绘股份18.5921.651.75300900广联航空24.4521.630.87301079邵阳液压17.2221.607.56301306西测测试42.0121.576.90301398星源卓镁46.5321.565.41835670数字人16.6721.4916.74300462华铭智能11.1821.475.57300147香雪制药9.0621.387.35831167鑫汇科23.5021.3126.34837212智新电子14.5921.3020.28835184国源科技16.1221.2930.00833509同惠电子14.6621.1629.96873690捷众科技16.6621.099.89872374云里物里22.6821.0320.77001339智微智能37.7020.94-0.79430425乐创技术18.8620.8917.36600611大众交通8.4820.84-1.28688530欧莱新材19.6120.774.14300655晶瑞电材11.0520.741.94301312智立方49.7220.746.31301050雷电微力61.1120.7312.81300386飞天诚信18.2220.716.92300290荣科科技24.0220.708.49300588熙菱信息14.8920.631.15301596瑞迪智驱78.4020.594.35301361众智科技27.8620.591.68873001纬达光电17.0320.5930.00831627力王股份18.3520.409.36836547无锡晶海19.2920.3611.76301502华阳智能44.2120.321.89301141中科磁业36.3020.306.51837242建邦科技29.0520.269.58835508殷图网联21.8420.1913.87300781因赛集团61.8620.173.88839371欧福蛋业5.9720.177.57300295三六五网17.3920.140.64300493润欣科技16.8020.143.51300622博士眼镜27.5920.132.95301555惠柏新材29.5120.117.08300807天迈科技38.4020.108.05688631莱斯信息129.7220.0719.99301256华融化学8.5520.051.66002130沃尔核材19.0020.051.39002902铭普光磁21.5020.041.56300535达威股份16.1520.002.09（文章来源：证券时报网）