证券时报·数据宝统计，8月18日沪指收盘报3131.95点，跌31.79点，跌幅为1.00%，近五日涨跌幅为-1.80%。近五日A股成交量3098.27亿股，成交金额34007.58亿元。近五日龙虎榜中，机构或营业部资金净买入的个股有70只，净买入净额为33.34亿元。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-815.39亿元，已连续15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，84只个股出现了机构的身影，其中34只股票呈现机构净买入，50只股票呈现机构净卖出。近五日机构净买入前三名分别是华是科技、云赛智联、浙数文化，机构资金流入净额分别是2.08亿元、1.51亿元、0.89亿元。此外，机构净卖出居前个股分别有华林证券、太平洋、韦尔股份等, 机构资金流出净额分别是5.00亿元、4.48亿元、2.37亿元。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）301218华是科技33.6231715.5810950.1020765.483.94-3628.85600602云赛智联17.9315057.450.0015057.451.5743834.00600633浙数文化5.698940.800.008940.801.90-2606.66002527新时达13.1618474.4811672.876801.610.9831803.23300503昊志机电12.249832.243115.796716.451.58-7863.83002703浙江世宝12.635189.109.085180.020.8431360.00601059信达证券12.7834069.1029342.374726.730.3431974.65002995天地在线-14.4911250.937276.043974.881.18-10084.12300607拓斯达17.983834.140.003834.142.625028.58301255通力科技24.8020931.1117321.913609.201.273195.75301277新天地-15.275136.101759.953376.150.95-13471.57301515港通医疗-12.725590.432741.832848.590.988668.79002528英飞拓5.832685.200.002685.200.50-1769.58301487盟固利41.0417193.6014706.612486.990.3326534.01002553南方精工7.4613885.9011645.432240.470.854371.79002123梦网科技-4.552929.29745.922183.371.01-15532.98000719中原传媒-1.944234.732086.552148.180.505940.52000006深振业A-7.551985.340.001985.340.45-7412.83301299卓创资讯-2.094177.772254.411923.360.87252.04300097智云股份3.603736.681998.591738.081.103298.37　　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科大讯飞、陕西金叶、鸿博股份。具体来看，科大讯飞是资金最青睐个股，营业部净买入金额达3.05亿元，高居榜首。此外，陕西金叶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）002230科大讯飞-8.5881545.8351013.7530532.081.56-88283.70000812陕西金叶2.4415277.991698.4913579.505.82-4226.49002229鸿博股份10.2542736.9129633.6713103.240.74-59384.59301498C乖宝37.2815002.022550.3312451.693.2028084.87301487盟固利41.0444994.4232829.5312164.891.6126534.01000982中银绒业25.7723882.2712110.5711771.693.53-20167.39000826启迪环境28.1320608.109277.4311330.678.1312564.50301511C德福70.3917065.146427.6610637.482.5930965.52002777久远银海10.1814622.704314.7910307.901.9430448.68301510C固高427.5013592.273850.469741.811.6438473.18603000人民网16.8833624.5524408.549216.010.5434819.94002527新时达13.1652485.1843704.988780.201.2731803.23601099太平洋-2.7256285.3347939.798345.540.21-39135.30002945华林证券5.0329391.9122662.256729.660.70-26476.11000010美丽生态21.548821.882653.236168.657.3211619.84000903云内动力2.0114274.818126.486148.331.60-7276.34002670国盛金控3.2717244.0711590.335653.731.2312568.24300958建工修复25.388320.742812.595508.155.888258.45301533C威马155.937762.562293.335469.234.3640695.18301218华是科技33.6214299.849214.215085.630.96-3628.85　　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70只个股中，主力资金同期净流入的个股有44只，净流入金额最大的个股为云赛智联、C威马、C固高，主力资金分别为4.38亿元、4.07亿元、3.85亿元。主力资金净流入力度较大的个股有C威马、中铁特货、正和生态，力度分别高达32.41%、24.53%、24.31%。（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（%）600602云赛智联17.9312410.241.2943834.004.56301533C威马155.934083.473.2540695.1832.41301510C固高427.506876.491.1638473.186.48603000人民网16.889216.010.5434819.942.02601059信达证券12.785505.680.3931974.652.28002527新时达13.1615581.802.2531803.234.60002703浙江世宝12.638545.301.3931360.005.11301511C德福70.397575.971.8430965.527.53002777久远银海10.1811357.732.1430448.685.73301498C乖宝37.284107.121.0528084.877.21301487盟固利41.0414651.891.9426534.013.51001213中铁特货10.362804.754.2716098.5924.53001360南矿集团22.483924.324.0215005.2615.37002670国盛金控3.275653.731.2312568.242.73000826启迪环境28.1311330.678.1312564.509.02600367红星发展9.544656.373.5011939.218.97000010美丽生态21.545001.035.9311619.8413.78603162海通发展14.743262.066.469501.0018.82001324长青科技61.113543.592.009004.695.09301137哈焊华通44.275442.116.008981.029.90（文章来源：证券时报网）