2倍做多MU ETF-Direxion（代码：MUU）今日盘前出现大幅上涨，涨幅达到8.53%，引起了市场的广泛关注。
消息面上，此次上涨主要得益于其跟踪标的美光科技（MU）获得华尔街投行的密集唱多。瑞银将美光科技目标价从535美元大幅上调至1625美元，为华尔街最高水平，并维持买入评级。瑞银的核心逻辑在于，存储行业首次出现带固定定价的长期协议（LTA），预计到2027年行业DDR出货量中约20%-30%将被LTA覆盖，这一模式有望显著平滑盈利波动，推动市场对美光的估值从周期股转向成长股。
此外，人工智能（AI）算力需求的持续升温，结构性改变了存储行业的格局，美光作为存储芯片核心标的，其订单可见性大幅增强。汇丰等其他机构此前也上调了美光目标价，多家机构看多形成共振，带动了整个半导体板块的强势表现。作为美光科技的2倍杠杆多头ETF，该基金在板块上行周期中，放大了标的资产的涨幅弹性。
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