美国芯片股盘前涨幅扩大。ARM 上涨 7.4%，高通上涨 3.4%，iShares 半导体 ETF 上涨 5.9%。英伟达上涨5%，博通上涨4.9%，美光科技上涨9.2%，英特尔上涨6.2%，超微半导体公司上涨8.3%
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