美股异动｜存储板块涨幅收窄，西部数据涨幅收窄至3%，SK海力士、希捷科技涨幅收窄1.7%，闪迪、美光转跌

老虎资讯综合07-31

7月31日，存储股板块涨幅收窄，西部数据涨幅收窄至3%， SK海力士、希捷科技涨幅收窄1.7%，闪迪、美光科技转跌。

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