周五盘中，1.5倍做多恐慌指数短期期货ETF（UVXY）大涨6.55%，引发市场关注。这一显著涨幅反映了市场波动性的急剧上升。
UVXY是一种追踪芝加哥期权交易所波动率指数（VIX）短期期货的杠杆ETF。VIX指数被广泛视为华尔街的"不安指数"，用于衡量预期的股市波动性。当日早间，VIX指数上涨5.5%，突破21点关口，远高于此前一周17点左右的水平，表明投资者的不确定性正在增加。
导致市场波动性上升的主要因素包括：对人工智能估值的担忧、美联储下一步利率决策的不确定性，以及市场对美联储降息预期的变化。多位美联储官员近期对12月份再次降息的可能性持谨慎态度，市场对美联储12月降息的预期已从一个月前的95%下降到目前的约50%。这种预期的转变加剧了市场的不确定性，推高了VIX指数，进而带动UVXY大幅上涨。
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