Cerebras Systems（CBRS）今日盘后股价大跌16.39%，引发市场广泛关注。该股在常规交易时段曾收涨逾11%，然而财报公布后迅速转跌，呈现典型的"买预期、卖事实"行情。
消息面上，公司于盘后公布了2026年第二季度财报。尽管公司上调了全年营收指引至8.8亿至8.9亿美元，并将年度调整后毛利率预期从38%-41%上调至41%-43%，但第二季度实际销售额为1.8011亿美元，同比增长74.3%，低于市场此前预期的约1.94亿美元。营收不及预期成为本次股价下跌的核心催化因素。
此外，公司此前已明确预警第二财季核心毛利率将从此前的46.5%大幅下滑至36%-38%，盈利能力短期承压明显。在财报公布前，该股在多重利好推动下已累计较大涨幅，本周迄今累涨逾15%。财报公布后，前期获利资金选择兑现离场，加剧了盘后抛售压力。尽管公司长期增长逻辑未变——包括与OpenAI达成的200亿美元算力合同以及与AMD、CrowdStrike的合作——但短期业绩不及预期仍对股价形成明显冲击。
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