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.

US stocks gained steam on Thursday afternoon as investors digested megacap tech earnings and waited for Apple (AAPL) results for more clues on prospects for Big Tech. Right ahead of the closing bell,

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.

The S&P 500 and the Nasdaq fell sharply on Monday, led by Nvidia and other chipmakers as popularity of a low-cost Chinese artificial intelligence model raised investor worries about the outlooks for current AI leaders in the United States.

Thursday's coverage included more tech earnings, focus on Trump's latest on potential tariffs and more analysis around Monday's DeepSeek Dive.

Following the widespread tech sell-off driven by the unveiling of DeepSeek's latest AI model, Yahoo Finance host Julie Hyman reviews the stock market's (^DJI, ^IXIC, ^GSPC) reliance on the ...

Wall Street's indexes rose on Wednesday, with the benchmark S&P 500 hitting an intraday record high as investors cheered streaming video provider Netflix's quarterly report and President Donald Trump's private-sector artificial intelligence infrastructure investment plan.

Despite the passive investing boom, there’s still growing demand for actively managed exchange-traded fund (ETF) solutions. Undoubtedly, passive investing in index ETFs is simple, effective, and, perhaps most importantly,

All three major U.S. stock indexes were higher in late-afternoon trade as focused turned away from Wednesday's Federal Reserve meeting and toward corporate earnings on deck. The S&P 500 index was leading the equity gauges higher with a 0.

The S&P 500 climbed to 6,100 for the first time during Wednesday's session. Traders cheered strong earnings and an AI initiative Trump announced on Tuesday.

Stocks were mixed on Thursday, with momentum stalling after the S&P 500 closed near record highs on Wednesday. Investors parsed fresh jobless claims data.

The S&P 500 and the Nasdaq ended sharply lower on Monday as Nvidia and other chipmakers sold off after surging popularity of a low-cost Chinese artificial intelligence model raised investor worries about the outlooks for current AI leaders in the United States.