On September 21, 2026, Advanced Micro Devices (AMD) achieved a market capitalization exceeding $1 trillion for the first time, reaching an all-time high of $613.92 per share, and trading up 9% at $610. This milestone positions AMD as the fourth US chipmaker to join the $1 trillion club, following Nvidia, Broadcom, and Micron. The company's ascent is attributed to its expanding involvement in AI computing, accelerating AI product launches, and offering comprehensive systems that include processors and networking gear, directly competing with Nvidia.
AMD's stock surge on Monday contributed to a five-day winning streak, during which shares climbed approximately 24%. Overall for the year, AMD's stock has seen a significant increase of over 180%. The company is also benefiting from increased demand for central processing units (CPUs) used alongside graphics processors in servers, which has enabled it to gain market share from Intel.
The broader semiconductor industry experienced a rally on September 21, fueled by Meta Platforms' new Muse AI agent, which is driving a repricing of CPU demand. Intel saw an 11% jump, Qualcomm rose 4.1%, and the overall chips index gained 2.6% to a one-month high. This indicates a strong market belief that inference workloads and autonomous AI agents will significantly increase CPU requirements. Although AMD's forecast in early August fell short of investor expectations, causing a 7% dip, the stock has since rebounded by over 26%.
