Micron's AI-era rise: record FY2026 Q4, HBM gap and US fab buildout
A Silicon Valley 101 article republished by TMTPost traces Micron from a dental-clinic basement in Boise, Idaho, to the only US company among the three big memory makers. It reports that on September 30 Micron posted record fiscal 2026 fourth-quarter revenue of $54.23 billion with an 80.7% operating margin, and full-year fiscal 2026 revenue of $133.2 billion, up 256% year over year, attributing the surge to AI-driven memory demand. The article says Micron remains the smallest of the three by revenue and capacity; citing SemiAnalysis estimates, it says Micron's HBM output is about one-third that of SK hynix and Samsung, and most production is still in Asia. It plans more than $250 billion of US investment through 2035 and about 40% of DRAM capacity in the US, though the first Boise phase is expected only around 2027. It also describes a public clash with Apple over rising memory prices and notes Micron is the only US company mass-producing advanced HBM.
The article says HBM is one of the most critical infrastructure pieces determining AI chip performance, and that Micron is the only US company among global mass producers of advanced HBM. On that basis it describes Micron as a core strategic asset the US must retain.
（本文作者为 硅谷101，钛媒体经授权发布）
文 | 硅谷101
9月30日，美光再次交出了一份创纪录的财报。
2026财年第四季度，美光单季营收达到542.3亿美元，营业利润率达到80.7%，营收与净利润双双刷新纪录。AI带来的强劲需求，正在让这家存储芯片公司迎来历史上最赚钱的时刻。
但回顾美光近五十年的历史，它的成长远没有今天的业绩看起来那么顺利。在存储行业残酷的价格周期中，许多曾经的巨头相继退出，而美光却一次次熬过亏损和行业洗牌，最终成为美国内存行业的“独苗”。
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#Micron#SK hynix#Samsung Electronics#Nvidia#Apple#HBM4E#Elpida Memory