证券时报·数据宝统计，7月18日沪指收盘报3197.82点，跌11.81点，跌幅为0.37%，近五日涨跌幅为-0.73%。近五日A股成交量3166.12亿股，成交金额40211.59亿元。近五日龙虎榜中，机构或营业部资金净买入的个股有74只，净买入净额为41.02亿元。从资金流向来看，A股主力资金近五日呈现净流出状态，主力资金净流量-823.69亿元，已连续3天主力资金净流出。
　　在主力资金净流出的背景下，龙虎榜机构资金近五日呈现净卖出状态。证券时报·数据宝统计，近五个交易日的龙虎榜当中，107只个股出现了机构的身影，其中42只股票呈现机构净买入，65只股票呈现机构净卖出。近五日机构净买入前三名分别是万润科技、香农芯创、恒为科技，机构资金流入净额分别是1.85亿元、1.79亿元、1.33亿元。此外，机构净卖出居前个股分别有人民网、闻泰科技、康缘药业等, 机构资金流出净额分别是2.62亿元、2.17亿元、1.94亿元。详情如下表所示。
　　近五日龙虎榜机构净买入金额最多个股
证券代码证券简称五日涨跌(%)机构买入金额（万元)机构卖出金额（万元)机构净买入金额（万元）占成交额比例（%）主力资金净额（万元）002654万润科技24.9536821.0718355.3418465.731.83-16048.76300475香农芯创21.6818850.94904.6417946.301.39-87188.56603496恒为科技10.6616362.093095.6113266.474.48-3906.02603888新华网5.089954.000.009954.001.84-5665.97600050中国联通11.6513783.104188.939594.170.80146707.00603191望变电气11.3410150.351600.008550.354.654366.26603730岱美股份11.399835.292508.967326.338.63191.76600707彩虹股份15.419147.422485.646661.791.793365.89002877智能自控28.159382.664082.355300.301.9614201.40300975商络电子9.5412791.597492.375299.221.37-19731.36002474榕基软件15.446712.031507.375204.672.19-4658.39301141中科磁业11.4410186.167088.983097.190.771165.79000066中国长城-10.482706.380.002706.380.51-44408.99002893京能热力-0.476425.913881.342544.580.531568.24300231银信科技16.946653.474516.442137.040.63-3740.23002995天地在线-7.332779.71733.782045.930.74-5569.93002527新时达-11.8730263.2528271.311991.940.28-10497.59300342天银机电-9.2413344.7311375.901968.820.41-18175.49603220中贝通信18.961771.610.001771.610.894341.13301388欣灵电气3.762717.58955.191762.381.02-1770.25　　与此同时，近五个交易日登陆沪深两市的龙虎榜个股中，营业部净买入较大的个股有中国联通、亨通光电、昊帆生物。具体来看，中国联通是资金最青睐个股，营业部净买入金额达12.12亿元，高居榜首。此外，亨通光电营业部净买入金额也排名居前。
　　近五日龙虎榜营业部净买入金额最多个股
证券代码证券简称五日涨跌(%)营业部买入金额（万元)营业部卖出金额（万元)营业部净买入金额（万元）占成交额比例（%）主力资金净额（万元）600050中国联通11.65139684.9418470.66121214.2810.08146707.00600487亨通光电6.6052479.2121761.1730718.033.5334463.76301393昊帆生物47.4120329.211101.8119227.404.1276273.47603045福达合金-2.9416521.105282.8211238.285.03-2358.53002396星网锐捷3.6821189.5710189.4411000.123.693789.11002474榕基软件15.4416047.395651.9510395.444.37-4658.39002292奥飞娱乐4.7118703.6211381.097322.530.92-13221.69002119康强电子12.119268.632592.656675.984.9623218.92000980众泰汽车16.1399214.7592566.036648.720.65-23288.59000603盛达资源11.9315280.779039.096241.682.2323191.68002400省广集团15.3421677.9815443.106234.871.49-4180.79001373翔腾新材32.629945.743990.765954.984.7417512.40301323新莱福5.859357.273739.785617.492.194747.22300659中孚信息24.509217.063634.695582.372.27-5704.59600707彩虹股份15.4111408.725890.675518.051.483365.89002535林州重机31.5236815.3931354.375461.021.306049.19301456C盘古1.907777.542569.365208.182.2328665.57600480凌云股份13.8811260.086192.185067.891.53-12975.53600719大连热电18.8017357.1512355.655001.501.72-2861.30301226祥明智能10.047336.592339.524997.073.02742.16　　数据显示，一些个股在龙虎榜的机构或营业部中显示出有资金在净买入，并且期间主力资金还在净流入，两方面都说明这些个股受到主力资金青睐。在近五日龙虎榜机构或营业部净买入的74只个股中，主力资金同期净流入的个股有43只，净流入金额最大的个股为中国联通、昊帆生物、晶方科技，主力资金分别为14.67亿元、7.63亿元、4.20亿元。主力资金净流入力度较大的个股有云中马、康强电子、昊帆生物，力度分别高达20.14%、17.26%、16.34%。（数据宝）
　　近五日龙虎榜净买入个股主力资金流入排名
证券代码证券简称五日涨跌(%)龙虎榜净买入金额（万元)占成交额比例（%）主力资金净额（万元）净流入力度（%）600050中国联通11.65130808.4510.88146707.0012.20301393昊帆生物47.4112468.842.6776273.4716.34603005晶方科技14.432868.470.9641974.7814.11300457赢合科技40.764866.210.6841039.695.71600487亨通光电6.6030718.033.5334463.763.96301456C盘古1.903232.621.3828665.5712.27301272C英华特26.892185.200.9428044.0512.07002119康强电子12.116330.134.7123218.9217.26000603盛达资源11.935416.651.9323191.688.28301381赛维时代66.413750.550.9021239.345.08301329C信音12.101990.231.4118196.3212.88001373翔腾新材32.625810.024.6317512.4013.95002777久远银海14.193509.530.9015779.214.05002877智能自控28.157372.332.7314201.405.25002196方正电机5.26794.580.4013712.536.82002112三变科技9.911077.610.3911883.394.34301503C智迪4.91693.580.7710513.7411.67301379天山电子49.891612.270.7610109.784.74603938三孚股份17.854064.672.8910065.027.15301370国科恒泰35.621483.520.4710063.193.21（文章来源：证券时报网）