AI Fatigue Reshapes Market Themes as Chip Stocks Slide

NEW YORK — One of the dominant market themes of the past few years is showing strain. Semiconductor stocks are in their worst stretch in 16 months, and MarketWatch attributes the slide to a growing sense of “AI fatigue” among investors, according to a bulletin published Tuesday.

The report is brief, but the message is plain. The group that has served as the market’s clearest proxy for artificial intelligence enthusiasm is now behaving like a crowded trade that investors are tired of holding.

Key takeaways

• Chip stocks are on their longest and deepest losing run in 16 months, according to MarketWatch.
• The pullback is being framed as fatigue with the AI story, not as a single company-specific shock.
• Separate reporting on AI software dealmaking shows the theme is still generating corporate activity even as sentiment cools in semiconductors.
• The next test is whether the weakness stays confined to chips or spreads to other AI-linked areas.

What changed

For much of the recent cycle, semiconductor shares have been treated as the most direct way to express a bet on AI spending. A 16-month low in performance means the group has not endured a comparable stretch of weakness since mid-2025. That matters because chips have carried outsized weight in broad equity benchmarks, so a prolonged slump in the sector can shape the tone of the whole market, not just one corner of it.

The word “fatigue” is telling. It suggests that the issue is not that AI has been discredited, but that investors may be growing impatient, or less willing to keep paying up for the same narrative. Fatigue of this kind tends to show up as a rotation of money away from the most crowded positions, and semiconductors are among the most visible of those.

Who is affected

The most immediate impact falls on chip makers and the funds and exchange-traded products that concentrate in them. Investors who built portfolios around the AI theme through a handful of large semiconductor names are likely to feel the drawdown most acutely.

Index investors are exposed too, indirectly. When a heavily weighted industry group stumbles for months, it can drag on headline index returns even if the rest of the market holds steady. That dynamic is central to any serious stock market outlook for the weeks ahead.

Dealmaking tells a different story

Not every signal points the same way. Seeking Alpha, citing a report, said the AI customer-service agent company Decagon held sales talks with ServiceNow and other potential buyers. The details of any terms were not part of that report, and no deal has been announced.

Still, the episode is a useful counterpoint. Established software firms are reportedly looking at acquiring AI-native startups, which suggests corporate interest in the technology is intact. The divergence is worth noting: public-market sentiment toward the hardware that powers AI is cooling at the same time that strategic buyers are reportedly exploring purchases in AI applications.

Put differently, fatigue in chip stocks does not automatically mean the underlying business adoption of AI is slowing. Share prices can fall because of positioning, valuation or expectations, even when demand for the technology remains strong. Separating those factors is the main analytical challenge for anyone writing market commentary on the sector right now.

What to watch

Several questions will shape the next stretch. First, whether chip stocks stabilize or the losing streak extends into a longer correction, since 16 months is already a notable marker. Second, whether the fatigue spreads from semiconductors to software and other AI-exposed businesses, or whether money simply rotates within the theme. Third, whether further acquisition talks, such as those reported around Decagon, materialize into announced deals and signal that strategic buyers see value that public markets are currently discounting.

Investors will also look to upcoming corporate commentary for evidence on whether AI-related spending plans are holding steady. Until then, the market’s verdict on the AI trade appears less enthusiastic than it was, and the semiconductor group is where that shift is easiest to see.