Tesla’s stock slipped to a one-month low this week as investors digested growing speculation about a potential merger between Tesla and SpaceX.
At first glance, the idea sounds far-fetched. One company builds electric vehicles, energy storage systems and humanoid robots. The other launches rockets, operates satellites and is preparing for what could become the largest IPO in Wall Street history.
But increasingly, analysts and investors are beginning to view the possibility as more than just market gossip.
Why Is This Conversation Happening Now?
The immediate catalyst is SpaceX’s upcoming IPO.
SpaceX is reportedly looking to raise $75 billion at a valuation of approximately $1.8 trillion, making it one of the largest public offerings ever. Investor demand has reportedly exceeded $250 billion, highlighting just how much appetite exists for exposure to the company.
As excitement around the IPO builds, attention has shifted toward the relationship between Elon Musk’s various companies and whether they could eventually be brought together under one corporate structure.
Interestingly, Tesla is mentioned 87 times in SpaceX’s latest S-1 filing, reflecting how closely connected the two businesses have become.
The Case for a Tesla-SpaceX Combination
Analysts at Wolfe Research believe the merger idea has “moved into the mainstream.”
According to their view, the thesis rests on three major pillars:
1. Elon Musk’s Control
Musk remains the largest shareholder of both companies.
Unlike traditional mergers that require negotiations between independent management teams, a Tesla-SpaceX deal would involve businesses already operating under the influence of the same founder.
That doesn’t guarantee a merger will happen, but it does make the path easier than it would be for most large corporations.
2. Building an AI Powerhouse
This is perhaps the most interesting argument.
Tesla possesses one of the largest real-world data collection systems in existence through:
- Millions of vehicles on the road
- Autonomous driving systems
- Robotics development
- Energy infrastructure
SpaceX brings a different set of strengths:
- Massive computing infrastructure
- Starlink’s global communications network
- Satellite connectivity
- Advanced engineering talent
Supporters of the merger argue that combining these assets could create an AI ecosystem unlike anything currently available in public markets.
Imagine Tesla’s robotaxis, Optimus robots and AI systems operating on infrastructure supported by Starlink and powered by shared computing resources.
That vision is becoming increasingly attractive to investors focused on artificial intelligence.
3. Access to Capital
Both companies operate in industries that require enormous amounts of investment.
Whether it’s:
- Building autonomous vehicle fleets
- Expanding Starlink globally
- Scaling humanoid robot production
- Launching rockets and satellites
- Constructing AI data centers
The capital requirements are staggering.
A combined company would potentially have access to a larger pool of financing and a broader investor base.
Morningstar’s Surprising View
One of the most notable opinions comes from Morningstar.
While some Tesla investors worry that a merger could dilute their ownership, Morningstar believes Tesla shareholders could actually emerge as the primary beneficiaries.
Their estimate suggests that in a combined entity:
- Tesla shareholders could own roughly 66%
- SpaceX shareholders could own roughly 34%
If accurate, Tesla investors would retain majority ownership while gaining direct exposure to one of the world’s most valuable private companies.
That is a major reason some investors have started viewing Tesla not only as an EV company, but also as a potential gateway to SpaceX.
The Relationship Already Exists
This isn’t a situation where two unrelated businesses are suddenly considering a partnership.
The companies already have meaningful commercial ties.
Recent disclosures show that SpaceX has purchased:
- More than $500 million worth of Tesla Megapacks
- Around $130 million worth of Cybertrucks
The collaboration extends beyond products.
The companies increasingly overlap in:
- AI development
- Chip design
- Computing infrastructure
- Engineering talent
Many investors believe these connections will continue growing regardless of whether a formal merger ever happens.
What Are Prediction Markets Saying?
Prediction markets are also assigning meaningful odds to the possibility.
Current estimates suggest:
- Around 50% probability of a Tesla-SpaceX merger before May 2027 on Kalshi
- Around 43% probability before the end of 2026 on Polymarket
These markets are far from perfect, but they offer a useful snapshot of how seriously participants are taking the possibility.
A year ago, such probabilities would likely have been much lower.
Why Some Investors Remain Skeptical
Despite the excitement, several challenges remain.
A merger of this size would be extraordinarily complex.
Questions would arise around:
- Valuation of each company
- Governance structure
- Regulatory approvals
- Shareholder approval processes
- Potential conflicts of interest
There is also the question of whether combining two highly successful businesses actually creates more value than allowing them to operate independently.
Many investors would prefer Tesla remain focused on autonomous driving, robotics and energy rather than absorbing the complexity of a space business.
The Bigger Picture
Whether a merger happens or not, the discussion itself highlights something important.
Tesla is increasingly being valued as more than a car company.
Investors are now evaluating Tesla through the lens of:
- Artificial intelligence
- Robotics
- Energy infrastructure
- Data collection
- Autonomous transportation
At the same time, SpaceX is evolving beyond rockets into a broader technology platform through Starlink, AI infrastructure and communications networks.
The overlap between the two businesses is becoming harder to ignore.
For now, a Tesla-SpaceX merger remains speculation.
But what was once considered a fringe theory is rapidly becoming a serious topic among analysts, investors and market participants.
The biggest question is no longer whether the two companies are connected.
It’s whether Elon Musk eventually decides that they belong under the same roof.