Broadcom loses $300bn as AI guidance disappoints

The semiconductor giant's shares fell 15 percent in after-hours trading despite reporting 48 percent revenue growth and AI chip revenue that more than doubled to $10.8 billion. The sell-off came after management's forward guidance fell short of the most bullish investor expectations for AI growth acceleration. The broader market followed, with the Nasdaq falling 1.8 percent as investors questioned whether AI valuations had outpaced fundamentals. Broadcom's stumble illustrates how even strong AI results can trigger massive losses when growth trajectories disappoint hyped-up expectations.