证券时报·数据宝统计，10月31日沪指收盘报2893.48点，跌22.44点，跌幅为0.77%，近五日涨跌幅为-2.82%。近五日A股成交量3400.55亿股，成交金额40805.03亿元。近五日龙虎榜中，机构或营业部资金净买入的个股有98只，净买入净额为48.25亿元。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-886.04亿元，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买入状态。证券时报·数据宝统计，近五个交易日的龙虎榜当中，136只个股出现了机构的身影，其中75只股票呈现机构净买入，61只股票呈现机构净卖出。近五日机构净买入前三名分别是欧晶科技、恒生电子、用友网络，机构资金流入净额分别是2.22亿元、2.14亿元、1.97亿元。此外，机构净卖出居前个股分别有华统股份、欧普康视、巨星农牧等， 机构资金流出净额分别是2.67亿元、2.48亿元、2.29亿元。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)001269欧晶科技23.3624945.612756.8322188.785.04-2732.38600570恒生电子23.6490200.3368792.0821408.252.862593.11600588用友网络18.3033235.4813493.2019742.281.8731336.08002603以岭药业20.5716994.550.0016994.551.3829881.01603338浙江鼎力7.8516937.710.0016937.719.58-128.67300850新强联-31.9922232.616926.7015305.912.66-26019.96603383顶点软件18.0120739.635988.2414751.4012.618660.00300598诚迈科技50.6811969.640.0011969.641.8444902.30601882海天精工7.6513422.032042.2311379.803.625284.10002368太极股份24.8613487.974016.189471.793.746853.06002498汉缆股份14.0611103.631782.259321.383.8837635.08603171税友股份24.037409.960.007409.9610.017073.24300075数字政通22.857146.120.007146.122.2522598.56600212绿能慧充6.327334.50622.896711.615.563203.69300532今天国际21.447142.96878.356264.622.48-14672.76603713密尔克卫-17.1212505.446652.825852.624.32-3825.25001228永泰运21.646767.541125.285642.275.186179.13300366创意信息35.255540.390.005540.391.2712824.19600535天士力7.355831.90502.975328.933.733233.42603786科博达0.547037.651744.895292.765.71-5539.80　　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潞安环能、南天信息、竞业达。具体来看，潞安环能是资金最青睐个股，营业部净买入金额达7.49亿元，高居榜首。此外，南天信息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)601699潞安环能15.55104412.5929511.9374900.6617.9815018.36000948南天信息16.8851461.0623045.1728415.892.4910141.78003005竞业达16.0450017.4528322.8921694.5511.291450.60002077大港股份5.8777571.6560389.2217182.431.37-12277.81002279久其软件38.7632079.6614928.5417151.125.1512722.63601975招商南油-14.3117962.031955.0616006.972.56-32967.00002642荣联科技14.4121385.579356.9312028.642.5422361.42002765蓝黛科技12.8414815.862941.7011874.163.587936.58002845同兴达31.6822346.0011825.2410520.765.7018334.23000815美利云13.8811732.582548.269184.326.3618398.46000595宝塔实业7.9616803.048118.328684.721.75-15508.46600818中路股份6.8816160.117672.008488.115.963084.01002840华统股份-13.3813646.516115.037531.483.61601.93603396金辰股份7.9310858.074229.426628.651.6517304.14001322箭牌家居5.6013326.947126.336200.622.988123.05002268卫士通17.5425836.6820002.665834.020.8847457.59002486嘉麟杰4.709804.114641.445162.662.12-3101.17002120韵达股份-11.846741.911766.354975.564.42-5574.96603985恒润股份-11.509535.334820.764714.572.52-4138.09300595欧普康视-29.6215806.8311249.424557.420.82-48408.45　　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98只个股中，主力资金同期净流入的个股有68只，净流入金额最大的个股为卫士通、诚迈科技、汉缆股份，主力资金分别为4.75亿元、4.49亿元、3.76亿元。主力资金净流入力度较大的个股有美能能源、亚翔集成、神奇制药，力度分别高达98.22%、18.96%、18.76%。(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(%)002268卫士通17.549250.341.4047457.597.17300598诚迈科技50.6811869.011.8344902.306.92002498汉缆股份14.0612351.555.1437635.0815.65001300三柏硕-11.682676.930.9131704.1310.76600588用友网络18.308111.100.7731336.082.96002603以岭药业20.5719371.021.5829881.012.43300075数字政通22.851864.790.5922598.567.11002642荣联科技14.419182.961.9422361.424.73000815美利云13.885117.413.5418398.4612.73002845同兴达31.6810119.255.4818334.239.93300730科创信息23.062451.710.5417412.133.86603396金辰股份7.936628.651.6517304.144.30601699潞安环能15.5568390.6016.4215018.363.61000032深桑达A49.613689.621.6412731.315.66002279久其软件38.7613625.914.0912722.633.82300212易华录20.65855.750.5911465.917.89000948南天信息16.8828906.322.5310141.780.89301339通行宝15.843655.215.6010061.5715.41300573兴齐眼药17.855441.042.299973.714.19600613神奇制药26.81594.561.149754.0418.76（文章来源：证券时报网）