Shares of chipmaker Marvell fell 8% Thursday amid growing worries that the artificial-intelligence spending boom may be cooling, according to 24/7 Wall St. and Yahoo Finance. The drop was part of a broader retreat across the semiconductor sector, with Broadcom, AMD and Intel also sliding.
The weakness rippled well beyond a single name. AP News reported that AI stocks slumped again worldwide, dragging on markets globally even as most other corners of Wall Street held up and oil prices ticked higher. TradingKey reported that the Philadelphia Semiconductor Index — a closely watched gauge of chip stocks — slumped 4%, with Micron among the hardest hit. Yahoo Finance noted that memory-chip stocks in particular have been crashing, an awkward contrast with the supposedly booming demand for AI hardware.
At the center of the anxiety is "capex," or capital expenditure — the enormous sums that big technology companies are pouring into AI data centers and the chips that power them. Investors have begun to question whether that breakneck spending can continue, and any hint of a slowdown hits companies like Marvell that supply the underlying silicon.
Not everyone sees the sell-off as a warning sign. According to Investopedia, a number of Wall Street analysts have described the pullback in chipmakers and other AI stocks as "healthy" in recent weeks, framing it as a possible buying opportunity rather than a collapse. The same report noted that "no one is short" — meaning few traders are actively betting on further declines.
Why it matters: AI-linked chip stocks have driven much of the market's recent gains, so when investors get nervous about how long the spending spree will last, the tremors spread far beyond a single company.