Musk's Empire Now Holds Two of the World's Priciest Firms

HAWTHORNE, Calif. — Elon Musk now controls two of the most valuable companies on Earth, and a growing debate on Wall Street asks which one will ultimately be bigger: the rocket-and-satellite powerhouse SpaceX, or the electric-vehicle and AI pioneer Tesla.

Recent estimates put SpaceX's market value around $1.95 trillion and Tesla's near $1.5 trillion — a combined footprint that would have seemed unthinkable a few years ago. Together they represent one of the most remarkable wealth-creation stories in modern business, one public investors have embraced since the $SPCX debut earlier this year.

SpaceX's breakneck growth

SpaceX has become the momentum story. The company posted roughly 92% revenue growth in the second quarter, powered by a record launch cadence and the runaway success of Starlink, and analysts see room for profit margins to reach around 45% as the business matures. Its 2026 debut on the Nasdaq — and its merger with xAI, valued at $1.25 trillion — turned it into a public-market heavyweight almost overnight.

Tesla's next chapter

Tesla, meanwhile, is in the middle of a transformation from automaker to AI-and-robotics company. Its core vehicle business continues to generate enormous revenue, but the upside investors are watching lies in robotaxis, the Optimus humanoid program and a booming energy-storage division. With third-quarter deliveries due within days — and expectations running high, as laid out in our Q3 delivery preview — Tesla has a stack of catalysts that could reaccelerate its growth story.

Two engines, one empire

The "which is bigger" question may ultimately miss the point. Both companies feed off the same vertically integrated machine: shared talent, shared AI infrastructure and a shared appetite for problems most competitors will not touch. Chips designed for one can serve the other, compute built for xAI can train Tesla's self-driving models, and satellites can connect Tesla vehicles.

Some analysts predict SpaceX will pull ahead by the end of 2027 on the strength of its growth rate, and its trajectory is undeniably steep. But Tesla's optionality — a fleet of robotaxis, a humanoid-robot business and a grid-scale energy arm — gives it enormous upside of its own.

Either way, Musk sits atop two companies that many investors consider generational. Whichever ends up larger, the combination has already reshaped multiple industries — and, with Starship reaching for orbit and Tesla entering a catalyst-packed week, neither looks close to slowing down.