The AI boom has driven much of the stock market's growth in the last few years, but many AI stocks have taken a hit lately amid worries about a brewing bubble. Broadcom's drop Friday—even after a strong earnings print—could be taken as a signal of flagging support for the sector. Shares of Broadcom were down nearly 9% in recent trading, leading decliners on the S&P 500 and Nasdaq. AI investor favorites Advanced Micro Devices (AMD), Micron Technology (MU), and Palantir (PLTR) also lost ground, as worries abo ...