Musk: SpaceX could be worth more than rest of Earth

Elon Musk wrote on X that SpaceX could be worth more than the rest of Earth if the company achieves its long-term goals. The comment was posted in response to a user who criticized a reported compute arrangement involving SpaceX, xAI and Anthropic.

The exchange followed reports that Anthropic signed a compute leasing agreement with SpaceX in May 2026 for access to Colossus 1, a supercluster xAI built in Memphis to train Grok models. The arrangement gives Anthropic access to more than 220,000 NVIDIA GPUs and over 300 megawatts of power. The reported cost was roughly $1.25 billion per month.

A public filing from SpaceX described a multi-year ramp through May 2029 that analysts estimated could imply $30 billion to $40 billion in value tied to the capacity. Musk later clarified the base lease runs 180 days with a 90-day mutual termination notice.

The user who raised the criticism questioned whether the deal, variously reported at between $7.5 billion and $40 billion, could shift routine AI compute to SpaceX’s capacity and accelerate a rival’s growth while leaving Anthropic to handle only the most advanced tasks. Musk responded with the broader valuation remark, writing: “You don’t seem to understand that SpaceX will be worth more than the rest of Earth if we accomplish our goals.”

SpaceX’s June 12, 2026, initial public offering has been central to the market test of Musk’s claim. The IPO priced at $135 per share and raised about $86 billion. Shares opened at $150, climbed to an intraday high of $225.64 on June 16 and briefly pushed the company’s market value near $3 trillion. The stock later fell as much as 26% to $145.20 before trading around $152.

On July 7 SpaceX entered the Nasdaq-100, which produced about $4.3 billion in passive inflows from index funds. Investors have cited several near-term factors in their assessments of the stock, including a planned bond offering, large capital spending on Terafab data centers and upcoming insider lockup expirations.

Operationally, SpaceX completed its 80th Falcon 9 mission of the year to deploy additional Starlink satellites. The company has pointed to recurring revenue from large compute leases as one element of its business model.

The IPO and the Colossus 1 lease have shifted capital and attention across the space sector. Smaller publicly traded space companies, including Virgin Galactic and AST SpaceMobile, saw share declines as investor focus moved to SpaceX. Separately, another aerospace firm raised $10 billion at a reported $130 billion valuation.

The compute lease, SpaceX’s public listing and the company’s satellite network have focused attention on how commercial cloud-scale AI compute, satellite services and large capital projects will interact in coming years.