Tesla stock fell 5% after OpenAI entered the robotics race. Here's what Sam Altman's announcement means for Elon Musk and Tesla investors in 2026.

Wall Street has speculated whether the world’s richest person will consider a tie-up for his two most valuable companies.

For two years, the question surrounding Tesla's long-term value has been less about electric vehicles and more about one specific project that Elon Musk says could become the company's most valuable business.

With SpaceX headed for the public markets next month, industry experts and people close to Elon Musk are speculating about a potential tie-up with Tesla.

United States District Judge Mark Pittman has rejected xAI’s attempt to keep Elon Musk’s Tesla and SpaceX emails out of discovery in its lawsuit against Apple and OpenAI.

Tesla (NASDAQ:TSLA | TSLA Price Prediction) at $423.70 looks expensive, because the price embeds AI and robotics promises the business has not yet delivered. With the stock back above $400 after a 7.95% one-month rebound,

Don’t expect SpaceX to follow the same trajectory even as Musk tries to justify SpaceX’s valuation. Shares of Tesla rose 1.9% to $423.74 on Tuesday, while the S&P 500 and Dow Jones Industrial Average gained 0.