A wave of selling swept through semiconductor stocks around the world after a Chinese artificial-intelligence model drew attention and raised questions about the demand underpinning the AI boom.

The model, called DeepSeek, became the focus of the trading day. Its emergence unsettled investors who had bet heavily on the idea that advanced AI would require ever-larger amounts of expensive computing hardware.

That bet has a name on Wall Street: the "picks and shovels" trade, the wager that companies supplying the chips and equipment behind the AI boom would profit no matter which firms ultimately won the race. DeepSeek's arrival raised a question that rippled through markets — whether the demand supporting chipmakers is as durable as their valuations suggest.

The damage was concentrated in hardware. South Korea's SK Hynix, a major supplier of memory chips, fell sharply. In the United States, Nvidia and Micron declined, and the selloff carried into the broader technology sector. Futures on the S&P 500 and the Nasdaq pointed lower, while the Dow Jones Industrial Average moved higher, a split that reflected investors rotating away from technology and toward other parts of the market.

The reaction extended across regions. European and Asian technology shares fell alongside their American counterparts, producing what several outlets described as a global rout in the sector.

DeepSeek itself is a large language model built by a Chinese company, designed to perform the kinds of reasoning and text tasks associated with systems such as those from OpenAI and Google. Its reception among American engineers and researchers has drawn notice.

What the day did not settle is whether the selloff marks a lasting shift or a short-term reaction. Some analysts framed the drop as a reassessment of stretched valuations rather than evidence that demand for chips is collapsing. Others pointed to the possibility that cheaper AI models could eventually broaden the technology's use, which could support hardware demand over time. Both readings circulated as the trading session played out.

For now, the episode has focused attention on a single question that had been building beneath the AI boom: how much computing power the next generation of artificial intelligence will actually require, and who stands to gain from the answer.

References

1. 1.Financial news outlets — worldwide chip-stock selloff tied to attention on DeepSeek
2. 2.Market reports — SK Hynix, Nvidia and Micron declines; S&P 500/Nasdaq futures lower, Dow higher
3. 3.Technology coverage — DeepSeek identified as a Chinese large language model and its reception among U.S. researchers
4. 4.Analyst commentary — divided views on whether the selloff reflects a lasting shift or valuation reassessment