美股半导体板块强劲反弹:闪迪涨近26%美光涨超18%,仅一家下跌

投研日志Publicado em 2026-07-31Última atualização em 2026-07-31

Resumo

尽管7月30日强势反弹,但费城半导体指数7月累计跌幅仍达约20%,创下近年来最差月度表现之一。英伟达7月累计跌幅超过15%,SK海力士ADR自7月10日上市以来累计跌幅仍超4%。

当地时间7月30日(周四),在经历了一轮持续抛售之后,美股芯片半导体板块迎来强劲反弹。费城半导体指数(SOX)收盘大涨8.19%,报11221.53点,十余只个股涨幅突破10%,满屏飘红。

半导体设备领涨,存储芯片集体爆发

半导体设备板块成为当日最大赢家。全球第三大半导体设备厂商泛林集团(Lam Research)收盘暴涨17.98%,报304.33美元;应用材料(Applied Materials)涨14.97%,泰瑞达(Teradyne)涨14.43%。

存储芯片板块表现尤为亮眼。闪迪(SanDisk)收盘暴涨25.99%,报1231.93美元;美光科技(Micron)涨18.36%,报842.46美元;西部数据(Western Digital)涨15.37%;希捷科技(Seagate)涨11.41%。

SK海力士ADR收盘涨17.52%,报143.35美元,成功收复此前跌破的149美元发行价失地。

算力芯片同步回暖, 光通信板块同步走强

算力芯片板块全面反弹。美国超微公司(AMD)收盘涨13.00%,报484.16美元;英特尔(Intel)涨11.30%,报91.62美元;迈威尔科技(Marvell)涨12.18%;Cerebras涨19.88%。

AI龙头英伟达(NVIDIA)走势相对温和,收盘涨2.65%,报195.84美元。台积电(TSMC)涨7.64%,报374.67美元;博通(Broadcom)涨4.73%,报370.38美元;阿斯麦(ASML)涨7.98%,报1550.69美元;Arm Holdings涨7.61%,报224.89美元。

光通信板块同样表现强势。鲁门特姆(Lumentum)涨15.09%,Coherent涨12.16%,Ciena涨12.62%,Credo涨13.32%。

唯一例外

在满屏暴涨中,高通(Qualcomm)成为唯一显著下跌的主要芯片股,收盘跌2.92%,报155.68美元。公司此前宣布自9月1日起对全系列芯片产品实施两位数百分比涨价,但市场对其业绩前景仍存担忧。

反弹核心驱动力是什么?

本轮半导体板块强劲反弹由多重利好因素共振驱动:

一是微软财报超预期,AI投资逻辑获验证。 微软第四财季Azure及其他云服务收入同比增长43%,高于上一季度的40%,并预计2027财年第一季度Azure按固定汇率增长约45%。在持续数年累计投入上千亿美元后,微软首次在财报中展现出AI商业化加速的乐观迹象。受此带动,微软股价周四暴涨15.51%,创下自2008年以来最大单日涨幅,单日市值增加约4497亿美元,刷新美股有史以来最大单日市值增长纪录。

二是存储周期反转逻辑持续发酵。 AI算力拉动HBM高端存储需求,叠加头部厂商控产,芯片涨价预期升温。三星此前给出乐观芯片指引,进一步印证存储行业景气度回升。

三是前期超跌后的估值修复需求。 7月以来,费城半导体指数累计跌幅一度超过20%,板块估值短期处于低位,存在强烈的超跌修复需求。

四是美国6月核心PCE通胀数据符合预期,市场降息预期回暖,资金风险偏好回升,大量资金回流半导体成长赛道。

五是"对冲基金一哥"肯·格里芬闪电出手,避免市场"连环爆仓"。 被誉为"AI股神"的利奥波德·阿申布伦纳旗下"态势感知"基金周三因杠杆强平压力面临大量抛售,城堡投资在不到24小时内拍板拿下该基金的大部分二级市场持仓,避免了市场出现恐慌性踩踏。

反弹能否持续?

尽管当日反弹强劲,但市场对未来走势仍存在分歧。有机构表示,本次上下游同步普涨,说明资金对芯片行业景气修复形成共识。但短期反弹能否转化为持续行情,仍要看后续大厂资本开支与消费电子需求落地情况。

值得注意的是,Meta周四盘后公布财报并上调全年资本开支指引,但股价反而下跌近8%,显示市场对AI投资回报率的分歧仍在。苹果盘后一度跌近10%,因第四财季营收指引低于预期且零部件供应受限。

亚马逊盘后一度涨超10%,其云计算业务AWS营收增长37%至422亿美元,创2021年第四季度以来最快增速,为AI需求持续性提供了又一有力佐证。

尽管7月30日强势反弹,但费城半导体指数7月累计跌幅仍达约20%,创下近年来最差月度表现之一。英伟达7月累计跌幅超过15%,SK海力士ADR自7月10日上市以来累计跌幅仍超4%。

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