Advanced Micro Devices (AMD) is an American chip developer headquartered in Santa Clara, California. AMD develops and produces microprocessors, chipsets, graphics chips and system-on-chip solutions for the computer, communication and consumer industries. The company has been listed in the S&P 500 stock index since March 20, 2017, has around 9,700 employees worldwide and is the world's second largest x86 processor manufacturer after Intel (as of 2011).