7月17日，西部数据盘中下跌3.54%，报440.81美元/股，成交额5.33亿美元。存储板块持续承压，同业闪迪跌5.59%、希捷科技跌3.78%。
消息面上，韩国金融服务委员会于7月16日正式宣布针对单一股票杠杆ETF的监管措施，将最低保证金从1000万韩元提高至3000万韩元且仅认可现金，同时禁止新的单一股票杠杆产品上市。由于韩国散户此前通过三星电子、SK海力士2倍杠杆ETF大量涌入存储板块，监管收紧直接引发强制平仓与资金外流，抛售压力迅速传导至美股存储板块。此外，存储板块年内因AI需求预期涨幅巨大，积累了大量获利盘，在监管利空冲击下资金集中获利了结，加剧了下跌力度。
（以上内容均基于市场公开消息，由程序或算法智能生成，仅作为股价异动提醒，不作为投资建议或交易依据。）
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