A surprise development may have turned the market for artificial intelligence (AI) chips on its head. DeepSeek, a China-based start-up, developed an open-source large language model, claiming it took two months and cost less than $6 million.

Nvidia Corp.’s stock is declining in Monday action as investors weigh the potential for tariffs to impact chip companies and continue to assess the fallout from DeepSeek. Shares of Nvidia are down 3.4% in midday action to rank among the worst performers in the PHLX Semiconductor Index The stock has pared losses with President Trump now saying he has agreed to pause the Mexico tariffs for a month.

Nvidia (NASDAQ:NVDA) stock has been on a rough ride over the past week, plunging 16% after China’s DeepSeek unveiled its R1 AI model. This

Nvidia (NASDAQ: NVDA) benefited enormously from the increased investment in chips for artificial intelligence (AI), but news out of China is causing investors to wonder if the stock's high valuation is worth it ahead of potential risks to the massive investment big tech companies have put into data center infrastructure.