2倍做多MU ETF-Direxion（MUU）今日盘中大跌16.66%，引发了市场的广泛关注。
消息面上，此次大幅下跌主要源于其标的资产美光科技（MU）的股价出现显著回调。半导体板块今日遭遇普遍抛售压力，美光科技股价领跌，跌幅超过6%。此外，美光科技在近期突破1000美元大关、年内涨幅巨大后，技术面已出现极端超买信号，市场多空分歧加剧，积累了大量的获利回吐压力。
由于MUU是一款带有2倍杠杆的交易所交易基金，其设计会放大跟踪标的资产的日度收益与亏损。因此，即使美光科技正股仅出现中等幅度的价格回撤，也会导致该杠杆ETF出现放大后的剧烈波动，这直接解释了今日盘中出现的暴跌行情。
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