2月28日，A股市场集体回调，食品饮料板块逆市走强，AI+方向全线回调，截至10点13分，5G通信ETF（515050）跌超3%，持仓股天孚通信、源杰科技、新易盛领跌。资料显示，该ETF在AI算力、光模块、光通信、英伟达产业链概念上的暴露度较高。美股方面，“科技七姐妹”全军覆没。Meta跌2.29%，特斯拉跌3.04%，亚马逊跌2.62%，微软跌1.80%，谷歌A跌2.45%，苹果跌1.27%。...
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