The S&P 500 fell 1.5% on Monday, Jan. 27, as a Chinese startup's cost-efficient and high-performing AI model sent shockwaves through the U.S. tech sector.

Stock futures were near the flatline on Tuesday evening as investors turned toward the first Federal Reserve interest rate decision of 2025. Futures tied to the Dow Jones Industrial Average inched down 11 points, or 0.02%. Nasdaq 100 futures were 0.06% higher, while S&P 500 futures were flat.

Chinese startup DeepSeek has debuted an AI app that challenges OpenAI's ChatGPT and other U.S. rivals, sending a shock through Wall Street.

The Nasdaq & S&P 500 fell after Chinese startup DeepSeek shows AI can be built cheaply, sparking fears AI spending will stall. The blue-chip Dow rose.

IBM shares jumped 13% to lead S&P 500 gainers Thursday, a day after the company posted fourth-quarter results that topped analysts' estimates as its artificial intelligence (AI)-enabled business surged.

Wall Street is coming off a strong session as investors deliberated the implications of President Donald Trump’s return to the White House.

The Nasdaq Composite slid more than 3% in Monday’s trading as a slate of AI-related plays, including chip darling Nvidia, tanked.

President Donald Trump's boost to AI demand hopes is outweighing fresh tariff threats on China and the EU, as earnings season rolls on.

DeepSeek released an open-source artificial intelligence model in December, saying it took only two months and less than $6 million to create it.

Of the S&P 500 companies that have reported earnings so far, 79% have beat estimates, according to FactSet data.

Wall Street closed higher, with the S&P 500 index scoring an all-time high. Blowout Netflix results and plans for $500b AI investment fuel gains.

The S&P 500 and the Nasdaq slipped on Wednesday, as losses in tech heavyweights Apple and Nvidia pressured broader gains and cautious investors braced for the U.S. Federal Reserve's interest-rate decision,