The S&P 500 was on track for double-digit earnings growth, with more than half of companies having reported Q4 results so far.

Elon Musk announced Digital Optimus, a joint xAI-Tesla AI project, contradicting his 2024 claim that Tesla had 'no need' for xAI — amid an ongoing breach of fiduciary duty lawsuit.

In a post on X, Elon Musk said the project, dubbed "Macrohard" or "Digital Optimus," pairs xAI's Grok large language model with a Tesla-developed AI agent.

Tesla is teasing its Cybercab robotaxi. Here’s how booking, riding and pricing could differ from using Uber or Lyft.