DeepSeek was reportedly developed in just two months at a cost of under $6 million — a stark contrast to the billions typically spent by US giants.

Tech giants Meta Platforms META and Microsoft MSFT will highlight this week’s earnings lineup which also includes results from EV leader Tesla TSLA. Scheduled to release their quarterly results on Wednesday,

Jan. 27, 12:30 p.m. ET U.S. stocks got walloped Monday: The S&P 500 was down about 2% at 12:30 p.m. EST, and the tech-heavy Nasdaq sank 3%, heading toward its worst percentage loss since Dec. 18 and third-worst day of the last two years.

The second busiest week of earnings season includes four of the Magnificent 7. Chair Powell’s comments will be more important for markets than the Fed's rate decision.

The surge in Chinese AI chat assistant DeepSeek to the top of the Apple app charts couldn’t have been better timed to put pressure on the biggest U.S. technology companies. Four of the Magnificent Sev

Meta's AI chatbot is under scrutiny for incorrectly identifying the U.S. president. Despite Donald Trump's inauguration this week, the chatbot continued to name Joe Biden as president. Meta initiated emergency troubleshooting to resolve the issue,

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The concerns over U.S. tech stocks come during a week when many of the sector's key companies will report earnings. Meta, Microsoft, Apple and Tesla will all post results. Outside of tech, other major companies reporting include General Motors, Boeing, Starbucks, Comcast, Chevron and Exxon Mobil. Here are the key results to watch this week:

Stock futures were slipping Friday after the S&P 500 set its first record close of 2025.These stocks were poised to make moves Friday:Texas Instruments was down 4.5% after the chip company reported fourth-quarter earnings and revenue that beat analysts’ estimates but issued weak profit guidance for the current first quarter.

The S&P 500 dropped 1.5 percent, dragged down in large part by a 16.9 percent fall for Nvidia. Other Big Tech stocks also took heavy losses.

Losses accelerated on Monday as AI bellwether Nvidia ( NVDA) dropped more than 17%, leading a sell-off across the broader market after a new AI model from China's DeepSeek raised questions about AI investment and the rise of more cost-efficient artificial intelligence agents.

Stocks were sharply lower Monday afternoon on concerns about the competitive threat that China poses in the race to develop artificial intelligence.