Elon Musk is reportedly exploring a merger between Tesla and SpaceX, according to sources cited by CNBC, marking a potential turning point for two of his most valuable companies. The conversation comes as SpaceX prepares for what could be the largest initial public offering in market history, giving the rocket company the public market currency needed to execute a stock-for-stock deal with Tesla. Tesla employees have long expected such a transaction, with the topic openly discussed internally.

Why Would Musk Merge His Two Biggest Companies?

The financial logic is compelling. A combined SpaceX and Tesla would create a conglomerate spanning rockets, satellites, electric vehicles, artificial intelligence infrastructure, and energy storage. Based on SpaceX's initial public offering target range and Tesla's current market capitalization, such a merger would value the combined entity at roughly $3.35 trillion to $3.6 trillion. The two companies are already far more intertwined than most investors realize.

SpaceX has already purchased $697 million worth of Tesla Megapack energy storage systems for xAI data centers and $131 million worth of Cybertrucks. Tesla invested $2 billion in xAI, Musk's artificial intelligence company, which subsequently merged with SpaceX. Beyond these major transactions, Tesla has sold solar equipment and parts to SpaceX, while SpaceX has assisted with Cybertruck materials development. The two companies also announced a joint semiconductor fabrication facility in Austin called Terafab on the Gigafactory Texas campus, covering two advanced chip factories, with one serving Tesla's AI needs for vehicles and Optimus robots, and the other targeting space-based data centers under SpaceX's infrastructure vision.

What Structural Groundwork Is Already in Place?

Musk himself signaled the direction of his companies in November 2025 when he posted on X, "My companies are, surprisingly in some ways, trending towards convergence". The infrastructure connecting these businesses suggests they are already operating more like divisions of a single entity than independent competitors. Consider the key elements already established:

• Shared Supply Chain: Cross-company purchases of energy systems, vehicles, and materials totaling hundreds of millions of dollars demonstrate deep operational integration.
• Joint Semiconductor Facility: Terafab represents a unified approach to chip manufacturing for both terrestrial AI and space-based infrastructure needs.
• Cross-Company Balance Sheet Transactions: Tesla's $2 billion investment in xAI and subsequent merger with SpaceX shows financial flows designed to consolidate resources.
• Unified AI and Infrastructure Vision: Both companies are building toward a common goal of AI-powered systems spanning Earth and space.

Wedbush analyst Dan Ives places the probability of a merger at 80 percent to 90 percent, with a target completion in the first half of 2027. However, not everyone is convinced the timing is imminent. Traders on Kalshi place only 33 percent odds that a merger will happen before May 2027.

What Are the Legal and Structural Challenges?

The mechanics of a deal became possible the moment SpaceX filed its S-1 registration statement with the Securities and Exchange Commission. Legal experts said a merger likely would not spark antitrust issues but would raise significant concerns among shareholders in each company. Key questions include which company would serve as the parent entity, how a stock swap would be structured, and who determines the appropriate price.

Musk's ownership structure complicates negotiations. He holds approximately 20 percent of Tesla's equity but controls 85.1 percent of SpaceX's voting power through a super-voting share class, meaning he would largely be negotiating the terms with himself. This asymmetry could accelerate deal-making or create shareholder friction depending on how the transaction is structured.

How to Monitor the Merger Timeline

• Watch SpaceX's IPO Marketing: SpaceX is expected to start formal marketing of its initial public offering as soon as June 4, 2026, with pricing potentially as early as June 11, 2026. Investor feedback during this roadshow will signal appetite for a combined entity.
• Track Terafab Development: Progress on the joint semiconductor facility in Austin will indicate whether the companies are deepening integration or preparing for separation ahead of an IPO.
• Monitor Shareholder Communications: Both Tesla and SpaceX will likely address merger speculation in investor calls and filings. Musk's public statements on X remain the most direct signal of his intentions.
• Follow Analyst Revisions: Investment banks advising on the SpaceX IPO will adjust their merger probability estimates based on investor feedback and market conditions.

The more immediate concern for Tesla shareholders is whether the SpaceX IPO pulls capital and Musk's attention away from Tesla before any merger consolidates the upside for both companies. SpaceX is currently targeting a valuation of at least $1.8 trillion in its initial public offering, according to people familiar with the matter, as the company nears its debut. Bloomberg News reported in April that SpaceX was aiming for a valuation above $2 trillion, but the target settled lower after consultations with advisers and investors.

SpaceX is seeking to raise as much as $75 billion, which would make it the biggest IPO of all time. The company had $18.7 billion in revenue in 2025, up from $14 billion the previous year. During that period, the company swung from a profit of $791 million in 2024 to a loss of $4.94 billion in 2025, according to the filing. In February 2026, SpaceX acquired Musk's xAI, housing the Grok chatbot and social media platform X, giving SpaceX a valuation of $1 trillion at the time and xAI a value of $250 billion.

What is clear is that the structural groundwork for a merger is already being laid. The Terafab announcement, the xAI merger, the shared supply chain, the cross-company balance sheet transactions, and now the IPO all point in the same direction. Whether the merger follows in 2027 or later, the two companies are already operating more like divisions of a single entity than independent competitors.