#美光市值突破1万亿美元 – May 28, 2026 – As the artificial intelligence revolution continues to reshape the global economy in 2026, Micron Technology (NASDAQ: MU) has just cemented its place as an indispensable pillar of the AI infrastructure. Following in the wake of Nvidia, Micron’s stock surged over 19% in yesterday's trading session, officially propelling the company into the trillion-dollar market capitalization club.

This milestone is more than just a Wall Street celebration; it represents a fundamental revaluation of "AI memory." Micron has become the fastest company in semiconductor history to break the $1 trillion barrier since the dawn of the modern AI era.

The Perfect Storm: Earnings and Expectations Collide

Micron’s parabolic rise was driven by a perfect storm of bullish catalysts:

1. Aggressive Re-rating by Wall Street
The immediate trigger came from a report by UBS. Analyst Timothy Arcuri raised Micron's price target from $535 to a staggering $1,625 – nearly tripling the previous estimate. UBS argues that as AI evolves from simple "Q&A" toward "Agentic AI," memory consumption will be revolutionary. More importantly, Micron is reportedly shifting away from cyclical spot pricing toward multi-year fixed-price supply contracts, ensuring high-visibility cash flow.

2. Overwhelming Fundamentals
The optimism is far from baseless. Micron's fiscal Q2 2026 earnings revealed stunning cash generation: revenue hit nearly $240 billion (Note: Verify figure; likely $24B?) , up nearly 200% year-over-year, crushing analyst EPS estimates. More terrifying for competitors was the guidance: fueled by insatiable HBM (High Bandwidth Memory) demand, next quarter's gross margins are expected to hit a "software-like" 81% .

The HBM4 Comeback: From Zero to Nvidia's Core Partner

The core narrative behind Micron’s trillion-dollar valuation is its stunning technological comeback in HBM4.

Just three years ago, Micron was written off in the high-bandwidth memory race. Today, it has not only caught up but has leapfrogged rivals to secure a prime spot in Nvidia’s next-generation Rubin Ultra platforms. With AI GPUs facing memory bottlenecks, Micron’s advanced stacking technology has become the "turbocharger" for large language models.

"We are no longer just a memory vendor; we are a performance enabler for the AI era," said Sanjay Mehrotra, CEO of Micron, during a recent earnings call. "Crossing the trillion-dollar market cap is a testament to the hard work of our team and the irreplaceable role of memory in the data-centric future."

Looking Ahead: The "Memory Supercycle"

With data centers scrambling to upgrade for Agentic AI and edge AI devices entering mass production, analysts at Goldman Sachs and Morgan Stanley are calling this the dawn of a "Memory Supercycle."

Unlike previous booms driven by PC and mobile, this cycle is characterized by supply scarcity and technological differentiation. As the only U.S.-based manufacturer of advanced DRAM and HBM, Micron is uniquely positioned to benefit from both geopolitical supply chain diversification and explosive AI demand.

About Micron Technology
Micron is a world leader in innovative memory and storage solutions. Through its global brands — Micron, Crucial, and Ballistix — the company offers a rich portfolio of high-performance memory technologies, including DRAM, NAND, and HBM, enabling the world's most critical AI data centers