SpaceX and Tesla Explore Merger: Analysts Name Valuations up to Nearly $5 Trillion

Elon Musk announced on Tuesday, October 21, 2026, during SpaceX's earnings presentation that both companies have formed special committees of independent directors to examine a SpaceX and Tesla merger at the request of shareholders. Musk stated he saw "great benefit in combining the companies".

The market reacted immediately positively: Tesla shares rose Tuesday morning by $14.01 or 3.8 percent to $387.72. SpaceX shares gained $14.62 or 9.9 percent to $162.41. Following Musk's comments, Tesla climbed 3.4 percent and SpaceX 7.8 percent, increasing the combined market capitalisation by $155 billion.

Valuations between $3.5 and $5 trillion

Wall Street analysts cite different valuations for the combined company. Current individual valuations stand at $2.14 trillion for SpaceX and $1.52 trillion for Tesla. For a merger, estimates range from $3.5 trillion to nearly $5 trillion. This would bring the new entity within reach of the world's most valuable companies – Nvidia at $5.2 trillion and Apple at $4.95 trillion market capitalisation.

Dan Ives, partner and senior managing director at Yorkville Ives & Co., stated that Tesla shareholders would likely demand a premium for their approval. "For the merger to be approved by shareholders, the price for Tesla would need to be higher – in our assessment, likely in the range of $500 to $550 per share," Ives said.

AI development and technological synergies

The strategic rationale focuses on artificial intelligence and the development of "super-intelligence". Musk named specific cooperation opportunities: "There is much to gain through collaboration on super-intelligence software development, chip design, of course the Terafab, robotics and mass to orbit with the Starlink constellation."

Both companies already collaborate: SpaceX purchases Tesla Megapack batteries and Cybertrucks. Tesla invested $2 billion in xAI, which SpaceX acquired in February. Both companies are co-owners of Terafab, a chip project.

Tesla is shifting its business focus away from traditional vehicles. In January 2026, the company announced it would phase out production of the Models S and X. Instead, Tesla is concentrating on autonomous products, particularly self-driving robotaxis, and humanoid robots (Optimus). Optimus production is expected to reach one million units annually, with market launch planned for 2027. AI is essential for both Optimus functionality and Tesla's robotaxi strategy.

Massive dilution for SpaceX shareholders

The merger carries substantial dilution risks for SpaceX shareholders. At a conservative premium of 30 percent on Tesla's current market capitalisation of $1.52 trillion, transaction costs would total $1.98 trillion. With a SpaceX valuation of $2.14 trillion, this would amount to nearly a merger of equals.

To acquire Tesla, SpaceX would need to issue the equivalent of 92 percent of its current outstanding shares. Share count would rise from 13.1 billion to 25 billion shares – a ratio of 1.91 to 1. SpaceX would thus "give nearly half of its future earnings to Tesla shareholders," as Fortune analysed.

While the consolidation would technically be earnings accretive for SpaceX on a per-share basis, "the addition to SpaceX's GAAP earnings per share would be minimal". Since SpaceX's earnings are growing while Tesla's are declining, a deal within one or two years would become "extremely dilutive for the Starlink provider".

Analysts see high probability

Dan Ives of Yorkville Ives & Co. put the probability of a merger at 80 to 90 percent by end of 2027: "We believe it is the right move for Musk for a number of strategic AI and data-driven reasons." Wall Street overall views the merger as inevitable, though price discovery remains contested.

The combination would consolidate Musk's vision of leading a single large company following the Berkshire Hathaway model – a "super-company" driven by AI technology. Critics, however, warn that the valuation rests on "unprecedented feats" and represents "the ultimate scenario where it's about the vision, not the numbers".

Political risk and valuation issues

A combination valued at $3.7 trillion would give Tesla shareholders overnight access to Starlink and the rocket business, but also "tie their stock to a political clock". Some analysts consider Tesla "grossly overvalued" and fear the merger could create a "Frankenstein monster that Wall Street cannot value" – subject to typical conglomerate discounts.

Overlapping AI plans could "generate substantial efficiency gains in areas such as computing power and talent". Yet the sheer size and complexity of combining a space company, electric vehicle manufacturer, AI developer and robotics firm poses unprecedented challenges to traditional valuation methods.

Another aspect: a merger could increase Tesla's valuation enough for Musk to be entitled to his $1 billion compensation package.