美股日线三连跌，纳指跌1.21%，道指跌0.30%，标普跌0.52%；热门科技股普遍调整，英特尔跌6%，特斯拉、AMD跌超5%；热门中概股多数走低，蔚来跌近3%，哔哩哔哩、小鹏汽车跌超2%；国际油价涨逾1%。
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美股市场：美股三大指数连续三个交易日下跌，截止收盘，道琼斯指数收跌102.35点，跌幅0.30%，报33951.52点；纳斯达克指数收跌165.10点，跌幅1.21%，报13502.20点；标普500指数收跌23.02点，跌幅0.52%，报4365.69点。
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热门科技股普遍下跌，半导体、软件应用跌幅居前，英特尔跌6%，创1月份以来最大单日跌幅，特斯拉、AMD跌超5%，Tower半导体跌超4%，高通、Snap跌超3%，纳微半导体、德州仪器、谷歌跌超2%。石油与天然气、铁路国防等板块走高，巴西石油公司涨超4%，道达尔、世纪铝业、加拿大太平洋铁路涨超2%，美国西屋制动、洛克希德马丁涨超1%。热门中概股多数下跌，蔚来跌近3%，哔哩哔哩、小鹏汽车跌超2%，百度、拼多多、京东、微博、阿里巴巴跌超1%，唯品会、满帮、网易小幅下跌。理想汽车涨超2%，腾讯音乐、富途控股涨超1%。
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欧股市场：欧股主要指数集体下跌，英国伦敦股市《金融时报》100种股票平均价格指数21日报收于7559.18点，比前一交易日下跌10.13点，跌幅为0.13%。法国巴黎股市CAC40指数21日报收于7260.97点，较前一交易日下跌33.20点，跌幅为0.46%。德国法兰克福股市DAX指数报收于16023.13点，下跌88.19点，跌幅为0.55%。
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商品市场：国际油价上涨，纽约商品交易所8月交货的轻质原油期货价格上涨1.34美元，收于每桶72.53美元，涨幅为1.88%；8月交货的伦敦布伦特原油期货价格上涨1.22美元，收于每桶77.12美元，涨幅为1.61%。纽约商品交易所黄金期货市场交投最活跃的8月黄金期价21日比前一交易日下跌2.8美元，收于每盎司1944.9美元，跌幅为0.14%。
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