Elon Musk has suggested that a merger between Tesla and SpaceX could be on the horizon, citing increasing overlap between the two companies. The comments came during Tesla’s Q2 2026 earnings call, marking the most direct acknowledgment yet of the ongoing speculation about a potential combination.

Musk Points to Growing Collaboration
The discussion was prompted by Colin Rusch of Wells Fargo, who asked Musk whether he saw ‘synergies eventually from combining the companies.’ Musk did not dismiss the idea, instead highlighting the extensive collaboration already underway between Tesla and SpaceX.
Musk stated, ‘Well I mean as you can tell from all the many collaborations on so many fronts with SpaceX, there’s more and more overlap. Especially with Terafab, that’s really going to be a gigantic project.’ He added, ‘Obviously we can’t talk about combining companies and that kind of thing on a call. It’s got to be done with the appropriate process.’
Framework Agreement and Financial Ties
Tesla general counsel Brandon Ehrhart expanded on the relationship, saying, ‘We continue to benefit from our relationship with SpaceX and we’ve had — they’ve been a great partner and we have numerous beneficial transactions with them.’ Ehrhart confirmed, ‘And earlier this year we deepened our relationship through an investment and a framework agreement.’
The framework agreement, disclosed in SpaceX’s S-1 filing, sets out a general plan for the future development of Terafab, with specific projects to be negotiated separately. Tesla’s $2 billion investment in xAI was converted into 18,990,195 shares of SpaceX Class A common stock, representing less than 1% ownership. In 2025, SpaceX and xAI entities purchased approximately $650M (~AUD 928.3M) in goods and services from Tesla.
Ehrhart noted the arrangement ‘will allow us to continue to work with them on projects that Elon mentioned like Terafab and Digital Optimus.’
Key Areas of Overlap
Musk detailed several areas where Tesla and his other ventures are converging. He cited the integration of Grok, xAI’s AI model, into Tesla vehicles and its role in ‘helping drive digital Optimus.’ Starlink connectivity is being added to the Cybercab and will be rolled out to all Tesla vehicles in markets where Starlink is available, which Musk argued is essential for robotaxis to avoid connectivity dead zones.
Terafab, described as a semiconductor ‘megafab’ project, is a joint effort with SpaceX. Musk emphasized that Tesla ‘will be constrained in our ability to scale Optimus production’ without Terafab.
Financial Impact of the SpaceX Relationship
Tesla’s Q2 2026 financials reflect the close ties with SpaceX. Of the company’s $1.1B (~AUD 1.6B) in GAAP net income for the quarter, about $750M (~AUD 1.1B) came from a mark-to-market gain on its SpaceX stake. Actual income from operations was $398M (~AUD 568.4M), resulting in a 1.4% operating margin.
SpaceX stock has declined roughly 30% since the last quarter, which could impact Tesla’s reported profits in future quarters. Musk currently holds about 20% of Tesla and controls 85% of SpaceX’s voting power. SpaceX’s reported valuation stands at $1750B (~AUD 2499.1B), while Tesla’s market cap is approximately $1600B (~AUD 2284.9B).

Why this matters
Musk’s comments and the existing financial and operational ties between Tesla and SpaceX signal a potential shift in the structure of his companies. The deepening collaboration, formalized through investments and framework agreements, suggests that a merger could be under consideration, with significant implications for shareholders and the broader technology sector.
The financial interplay between the two companies is already affecting Tesla’s reported earnings, making the nature of their relationship increasingly important for investors to monitor.
What this means for buyers
Tesla customers and investors should pay close attention to future announcements regarding the relationship between Tesla and SpaceX. Any merger or further integration could impact Tesla’s product roadmap, technology offerings, and financial performance. Buyers considering Tesla vehicles may also see enhanced features, such as Starlink connectivity and advanced AI integration, as a result of these collaborations.

Key Specs
- Tesla’s Q2 2026 GAAP Net Income: $1.1B (~AUD 1.6B)
- Mark-to-Market Gain on SpaceX Stake: $750M (~AUD 1.1B)
- Tesla’s Actual Income from Operations: $398M (~AUD 568.4M)
- SpaceX Stock Decline Since Last Quarter: 30%
- Tesla’s Market Capitalization: $1600B (~AUD 2284.9B)
- SpaceX’s Reported Valuation: $1750B (~AUD 2499.1B)
- Tesla’s Ownership in SpaceX (via xAI investment): Less than 1%
- Musk’s Voting Power in SpaceX: 85%
Source
Images sourced from: tesla.com, pixabay.com, eenews.net