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AI stocks were rattled this past week when Wall Street took notice of a high-performance, shockingly efficient open-source AI model from Chinese start-up DeepSeek.

The launch of DeepSeek had made investors question whether to allocate capital to higher-cost AI-related companies like Nvidia.

The Dow was falling Friday after the White House said tariffs begin on Saturday. The S&P 500 and Nasdaq were rising. The market also reacted to PCE inflation data.

In looking at changes in market capitalizations so far this year, it's a tale of two tech giants. Among all U.S.-listed companies, Meta Platforms Inc. has tacked on the most market cap over the course ...

Apple shares rose Friday morning after the company reported better-than-expected earnings and said customers are increasingly upgrading their iPhones to take advantage of AI features. Monitor these ...

The Dow Jones and S&P 500 climbed on the stock market today. Meta reached a record high and a cybersecurity name broke out.

You can't currently use an exchange-traded fund (ETF) to gain passive exposure to DeepSeek because it's not a publicly traded ...

Chinese start-up DeepSeek (logo pictured) sent big tech companies in the US into a spiral with the release of its AI chatbot, ...