西部数据（WDC）今日盘中股价大跌8.71%，成为市场关注的焦点。
消息面上，此次下跌是多重利空因素叠加所致。首先，韩国金融监管部门今日宣布收紧针对单一股票杠杆ETF的监管措施，提高最低保证金要求并禁止新产品上市，此举精准打击了存储股交易中活跃的投机资金来源，引发板块性抛售。其次，投资大师巴菲特罕见发声，警告市场在AI等主题上的投机行为犹如“赌博”，此番言论精准击中了存储股近期交易情绪亢奋的软肋，导致市场风险偏好显著回落。
行业基本面也出现不利信号。有机构透露，客户对DRAM价格大幅上涨的抵制情绪强烈，导致第三季度价格增长预测被下调，反映出在供给扩张预期下，需求端对高价格持续性的信心正在动摇。此外，存储板块此前因AI需求预期年内涨幅巨大，积累了大量的获利盘，在短期利空冲击下资金集中获利了结，加剧了股价下跌。
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