SpaceX, a rocket and satellite company, booked a $561 million gain from a tunnel-company stake
investment gain
A recorded increase in an investment's value.
related-party other income
Income connected to a company with a special business relationship.
operating income
Profit from the company's main business after its operating costs.
What happened
SpaceX, a company that launches rockets and provides satellite communications, recorded a $561 million investment gain in Q3 2026. CNBC attributed the gain to SpaceX's stake in The Boring Company, a company that builds underground tunnels. SpaceX reported net income of $4.404 billion for the quarter.
SpaceX's filing with the U.S. Securities and Exchange Commission shows $561 million in related-party other income. The filing does not name The Boring Company. The company-to-company link comes from CNBC's report. SEC filing CNBC report
Why the tunnel company matters
The Boring Company began inside SpaceX in 2017. It became a separate company the following year. Its plan is to move passengers through underground tunnels and stations. It operates passenger tunnels in Las Vegas.
In September 2026, The Boring Company raised $3 billion. The funding round valued the company at $23 billion. The United Arab Emirates led the round. The company says the partnership could support more than 150 kilometers of tunnels in the UAE. The Boring Company's announcement
A funding valuation is a price investors assign to a company. It is not the same as a public stock price. If that valuation rises, an investor may record a higher value for its stake. That accounting change can create an investment gain.
Why the gain matters
The $561 million represented more than half of SpaceX's other income. It helped lift quarterly net income above $4 billion. But it was not the only reason SpaceX reported profit.
SpaceX reported $14.575 billion in revenue. It reported $2.791 billion in operating income. Those figures include its launch, satellite communications, and Super Intelligence businesses. The investment gain appears below operating income, in other income.
This distinction matters. Sales and services show how the operating businesses performed. An investment gain shows that an asset became more valuable, at least in the accounts. It may not mean SpaceX sold its stake or received cash. The gain could later reverse if the valuation falls.
What is confirmed
The SEC filing confirms $561 million of related-party other income. It also reports $4.404 billion in net income. SpaceX had reported a $1.054 billion net loss in the year-ago quarter.
The Boring Company confirms the $3 billion financing and $23 billion valuation. Its announcement also describes the UAE tunnel partnership. These facts explain why the stake may have been marked higher. They do not show SpaceX's ownership percentage.
What remains unknown
The public filing does not say how much of The Boring Company SpaceX owns. It does not explain the exact accounting method behind the $561 million. It also does not say whether SpaceX sold any part of the stake.
That missing detail is important. A valuation set in a funding round can change. It does not guarantee that an investor could sell its entire stake at that price.
What to watch next
The next SpaceX filing should show whether similar gains continue. It may also show whether the gain reverses. Readers should compare net income with operating income and cash flow.
For The Boring Company, the key test is execution. Watch whether its Las Vegas operation expands. Watch whether Nashville and UAE projects become working passenger services. The broader lesson is simple: separate operating profit from investment gains.
Sources: SEC filing, CNBC report, company announcement
Why a tunnel company helped SpaceX report a bigger profit
📰 Full story: SpaceX, a rocket and satellite company, booked a $561 million gain from a tunnel-company stake
SpaceX recorded a large gain linked to The Boring Company. The gain helped its quarterly profit.
stake
An ownership part of a company.
operating income
Money left from the main business after costs.
related-party other income
Income connected to a company with a special business link.
💡 The gist
- SpaceX recorded a $561 million gain.
- The gain came from The Boring Company.
- It helped SpaceX report $4.404 billion in profit.
SpaceX, a company that launches rockets and runs satellite internet, reported the gain. The Boring Company, a company that builds underground tunnels, is linked to SpaceX. Elon Musk, the leader of both companies, started it inside SpaceX in 2017. It became separate the next year.
In September 2026, The Boring Company raised $3 billion. The deal valued the company at $23 billion. When investors value a company higher, its owners may show gains. SpaceX may have recorded a higher value for its stake. This is why the gain matters.
SpaceX reported $4.404 billion in third-quarter net income. The $561 million gain was more than half its other income. But SpaceX also earned money from its main businesses. It reported $14.575 billion in revenue. It reported $2.791 billion in operating income.
Revenue means money from selling products or services. Operating income shows money left after running the main business. Investment gains are different. They can come from a higher value in company records. They do not always mean cash arrived.
The U.S. Securities and Exchange Commission, a government market watchdog, received SpaceX's filing. The filing lists $561 million in related-party other income. It does not name The Boring Company. CNBC reported that the gain came from SpaceX's stake. SEC filing CNBC report
The Boring Company operates passenger tunnels in Las Vegas. It also plans more than 150 kilometers of tunnels in the UAE. Those plans could make the company more valuable. They could also face delays or costs.
Important details remain unknown. The filing does not show SpaceX's ownership percentage. It does not say whether SpaceX sold its stake. It also does not explain the exact accounting.
Next, watch the following SpaceX filing. Does another investment gain appear? Does operating income grow? Those answers will show whether the profit came from business growth or changing investment values.
Sources: SEC filing, company announcement
SpaceX counted a bigger value for its tunnel company
📰 Full story: SpaceX, a rocket and satellite company, booked a $561 million gain from a tunnel-company stake
A tunnel company became more valuable. SpaceX counted that change.
The Boring Company
A company that builds tunnels underground.
gain
A bigger number in the company records.
SpaceX, a company that sends rockets into space, owns part of another company. That company is The Boring Company, which builds underground tunnels. Elon Musk, the person who runs both companies, started it. It began inside SpaceX. Then it became a separate company.
In September 2026, it collected $3 billion from new backers. People valued it at $23 billion. So SpaceX's part looked more valuable. SpaceX counted a $561 million gain.
SpaceX's profit for July through September was $4.404 billion. But SpaceX may not have received $561 million in cash. The number may only show a higher company value.
SpaceX's public filing calls it related-party other income. CNBC says the related company was The Boring Company. The filing does not name that company. The Boring Company carries passengers through tunnels in Las Vegas. It also plans tunnels in the UAE. Future reports may show whether this gain happens again.
Sources: SEC filing, CNBC report