Wall Street's main indexes rose on Thursday, driven by post-earnings advances in Meta and Tesla, although Microsoft's weak cloud forecast and downbeat results from Cigna dampened investor enthusiasm. Microsoft MSFT.O dropped 4.7% after forecasting disappointing growth in its cloud computing business.

Tesla’s core business underperformed in Q4, missing analyst expectations for both earnings and revenue. Microsoft’s Q2 results were strong but fell short of expectations for

Wall Street got a hard slap after the bell on Jan. 29 when Tesla, Meta, and Microsoft dropped their earnings reports, each showing numbers that didn’t hit the targets analysts had set. Investors saw their hopes crash as three of the biggest tech giants struggled on multiple fronts—electric vehicles,

Microsoft MSFT.O has made Chinese startup DeepSeek's R1 artificial intelligence model available on its Azure cloud computing platform and GitHub tool for developers, the U.S. company said on Wednesday.

The Chinese startup DeepSeek shook up the world of AI last week after showing its supercheap R1 model could compete directly with OpenAI’s o1. While it wiped nearly $600 billion off Nvidia’s market value,