This article first appeared on GuruFocus. Advanced Micro Devices (NASDAQ:AMD) crossed the $1 trillion market-cap threshold for the first time Monday, underscoring how aggressively investors are rewarding chipmakers tied to artificial intelligence. AMD shares surged more than 9% to a record $611.57, extending their 2026 gain to roughly 173% and making the company the fourth U.S. chipmaker to surpass the trillion-dollar mark. Warning! GuruFocus has detected 6 Warning Signs with AMD. Is AMD fairly valued? Test your thesis with our free DCF calculator.AMD GF Value chart The rally was not limited to AMD. Intel climbed about 12%, Micron gained roughly 3%, and Nvidia advanced around 1.4%, helping push the Philadelphia Semiconductor Index up more than 3%.
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