AMD Reaches $1 Trillion Market Cap for First Time
Advanced Micro Devices (AMD) crossed a market capitalization of $1 trillion on September 21, 2026, marking the first time in its history. The milestone was driven by strong investor demand fueled by rising AI chip needs and a five-day stock rally that pushed AMD's share price to an intraday high of $613.92. This places AMD among top semiconductor firms like Nvidia, Broadcom, Micron Technology, and TSMC with valuations at or above $1 trillion. The broader semiconductor sector also saw gains on the day, including a 10% rise in AMD's stock, alongside significant increases for Intel (+12%) and Arm Holdings (+14%). The Philadelphia Semiconductor Index rose over 4%. Investor enthusiasm was partly driven by Meta Platforms' Muse AI Agent becoming one of Apple’s top free apps, increasing demand for processors to support agentic AI workloads. Meta is now AMD's second-largest customer. AMD has seen robust growth in its data center business, which accounted for $6.7 billion in Q2 revenue—more than double the prior year—and represents a core driver of future expansion goals set by CEO Lisa Su.
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Topics: AI chips AMD market cap semiconductor industry