6月23日，ProShares Ultra Semiconductors夜盘下跌8.58%，报101.51美元/股，成交额330.14万美元。
消息面上，韩国股市当日大幅下挫，三星电子跌超5%、SK海力士跌近6%，韩国综合指数与创业板指相继触发熔断机制暂停程序化交易。外资早盘净卖出逾2万亿韩元KOSPI股票，市场对芯片龙头抛售加剧。
背景方面，美银最新调查显示"做多半导体"已成为全球史上最拥挤的交易，散户杠杆和融资余额处于高位放大了跌幅。韩国金融监督院院长表示后悔未阻止个股杠杆ETF推出，正考虑对相关产品采取单独稳定措施。作为两倍做多半导体的杠杆ETF，该产品在板块回调中承受放大损失。
（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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