6月9日，思科盘中下跌3.03%，报120.83美元/股，成交额6.02亿美元。消息面上，此前思科披露的产品安全漏洞事件余波未平，尽管6月8日公司凭借AI流量扩容预期及云控制平台推进一度反弹3.09%，但市场对安全漏洞可能侵蚀客户信心、增加修复成本的担忧仍未完全消化。
与此同时，通信设备板块今日普遍走弱，Applied Optoelectronics跌8.84%，Lumentum跌5.51%，Ciena科技跌4.85%，诺基亚跌4.25%，行业整体承压加剧思科回调幅度。当前美国银行目标价135美元、高盛目标价125美元的投行预期对股价形成一定支撑参考，但短期安全事件与板块联动压力仍主导盘面情绪。
（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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