AMD ▲ +9.0% - Advanced Micro Devices, Inc. $AMD Advanced Micro Devices hits $1 trillion in market capitalization for the first time. Advanced Micro Devices reached a $1 trillion market capitalization for the first time, driving the stock up 9.0% today. The milestone reflects investor confidence in the chipmaker's position in the high-demand artificial intelligence and data center markets. 21-SEP-2026 10:18 AM ET