AI Bubble Jitters Slam the Nasdaq as Chip Stocks Lead a Painful Reversal

US stocks finished the week of October 12–16 on a sour note, with all major indexes retreating and the tech-heavy Nasdaq bearing the brunt of the damage. Investors are increasingly worried that the boom in artificial intelligence names has morphed into an outright bubble, just as uncertainty around the Federal Reserve’s next rate move remains high. Chipmakers and cloud providers – the core beneficiaries of the AI trade – sold off in unison, leaving semiconductor stocks nursing a ninth straight daily decline and cementing their worst weekly performance in months.

Reporting from outlets including AP shows broad-based weakness in big tech dragging the S&P 500 and Dow to their steepest weekly losses since late June. At a public appearance in Asia, Fed Chair Kevin Warsh acknowledged still‑firm inflation but offered little guidance on whether the central bank is leaning toward another hike, failing to calm rate‑sensitive growth stocks.

Market strategists are also sounding the alarm about how AI‑linked exuberance is spilling into credit markets. Debt issued to fund hyperscale data centers and cloud infrastructure has come under pressure, with yields pushing higher and bond prices sliding. The AI growth narrative remains powerful, but a combination of elevated interest rates and stretched valuations is forcing investors to reassess how much they are willing to pay for future earnings, putting the tech‑led bull run at a turning point.