AMD surges nearly 300%, crosses $1 trillion market cap for the first time

Advanced Micro Devices crossed a threshold that seemed implausible just a few years ago. On September 21, 2026, AMD’s market capitalization surpassed $1 trillion for the first time, making it the fourth US semiconductor company ever to reach that valuation. Shares hit an intraday high of approximately $616, closing around $613 after a roughly 10% single-day surge. How AMD got here AMD’s stock has climbed approximately 180% to 187% year-to-date in 2026, a figure that towers over Nvidia’s roughly 21% to 23% return over the same period. Nvidia carries a market cap of approximately $5.4 trillion. AMD outperformed it by a wide margin this year anyway. AMD’s Q2 2026 results gave investors plenty of reason to stay enthusiastic. Total revenue came in at $11.54 billion, a 50% increase compared to the same quarter a year earlier. Data-center revenue was the standout, reaching $6.7 billion, a 107% year-over-year increase. The products driving that growth are AMD’s EPYC server CPUs and Instinct GPUs, both of which have become core components in large-scale AI training and inference workloads. Meta, Microsoft, OpenAI, and Anthropic are among the key customers deploying AMD silicon, with Anthrop...