Fast Company Newsletters Concerns about an AI bubble and increased competition are weighing on Nvidia as the stock fell to a three- month low on Wednesday. Shares of the Santa Clara, California-based company tumbled more than 3% amid a broader decline for those chipmakers that are key to the artificial intelligence boom. Shares of Advanced Micro Devices and Broadcom were also down 4% and 5%, respectively. In recent weeks, a slew of companies have made moves that could chip away at Nvidia's domination as the ...