港股上市公司云知声（09678.HK）今日盘中大跌10.49%，引发市场关注。截至发稿时，该股报价较前一交易日收盘价大幅下跌，成交额超过2700万港元。
造成股价大跌的主要原因是公司近日发布的2025年中期业绩报告。数据显示，尽管云知声上半年收益同比增长20.2%至4.05亿元人民币，但公司亏损进一步扩大。期内亏损达2.98亿元人民币，同比增加16.6%；公司拥有人应占亏损为2.97亿元人民币，同比扩大16.4%。每股基本亏损增至4.28元人民币，这些数据引发了投资者对公司盈利能力的担忧。
值得注意的是，尽管财务表现不佳，云知声仍获选纳入恒生指数系列成分股，包括恒生综合指数、恒生综合中小型股指数和恒生互联网科技业指数等，将于2025年9月8日起生效。然而，这一利好消息似乎未能抵消业绩不佳带来的负面影响，股价仍然承压下跌。
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