智通财经APP获悉，半导体股午后跌幅扩大，截至发稿，宏光半导体(06908)跌16.18%，报0.57港元；晶门半导体(02878)跌7.14%，报0.52港元；华虹半导体(01347)跌5.64%，报21.75港元；上海复旦(01385)跌1.16%，报15.38港元。
消息面上，据媒体近期报道，美国商务部致函台积电，要求从11日开始停止向中国大陆客户供应7纳米及更先进工艺的AI芯片。消息人士称，台积电通知受影响客户，将从11日起暂停相关芯片发货。另有报道称，最新的管控措施仅限AI/GPU相关芯片，用于手机、汽车和通信的芯片不受影响。
华龙证券指出，半导体为大国竞争重要领域，地缘政治加剧芯片供应短缺，自主可控迫在眉睫。另外，随着特朗普当选后可能加大对华科技禁运与贸易制裁，我国半导体自主可控不仅势在必行，且将不断加速。华泰证券表示，半导体出口限制范围如果进一步扩大，短期对中国半导体产业或造成一定影响，长期或促进国产替代。
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