10月8日，三倍做多标普生物科技-Direxion盘中下跌8.24%，报209.175美元/股，成交额8120.05万美元。该ETF提供标普生物科技精选行业指数的三倍杠杆敞口，其跌幅显著放大同期标普生物科技精选行业指数的波动，反映杠杆效应下对生物科技板块回调的放大作用。近期生物科技板块情绪波动持续加剧，美国利率预期变化对高久期、零收入型生物科技公司形成持续压制，投资者对加息担忧重燃，导致杠杆型生物科技产品出现深度回撤。此外，临床阶段疫苗企业Vaxcyte公布31价肺炎球菌结合疫苗关键III期试验数据，市场将其视为肺炎疫苗赛道格局重塑信号，引发行业龙头默沙东等个股普跌，进一步拖累板块整体表现。
（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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