Tesla’s (TSLA) stock closed at $435.79 on May 29, down 1.43% on the day, as reports swirled about a potential merger between Elon Musk’s two biggest companies.
Tesla, Inc., TSLA
CNBC reported on May 27 that Tesla and SpaceX are weighing a combination. Tesla employees reportedly expect a transaction to “eventually take place,” and the topic is openly discussed internally.
Wedbush analyst Dan Ives put the odds of a deal at 80%, saying the game plan to fuse operations was already in place. Kalshi, the prediction market, currently shows 52% odds the deal closes by May 2027.
SpaceX is preparing for an IPO expected around mid-June, with a projected market cap of roughly $1.75 trillion. Tesla’s market cap sits at approximately $1.65 trillion — nearly identical.
If SpaceX acquires Tesla at those valuations, it would need to nearly double its share count. The combined entity would be valued at around $3.4 trillion, which would place it fifth among publicly traded companies globally, behind Apple, Alphabet, Nvidia, and Saudi Aramco.
The financial picture is the sticking point. Tesla posted $3.9 billion in GAAP net earnings over the past four quarters, down sharply from $15 billion in 2023. SpaceX recorded a net loss of $4.94 billion last year. On a combined basis, the pro-forma entity would currently be operating at a GAAP loss of roughly $1 billion per year.
Cash flow adds another layer of concern. SpaceX ran a free cash flow deficit of $14 billion last year due to heavy spending on AI infrastructure. Tesla is ramping its own capital spending significantly, with at least $22.5 billion in capex planned for the remainder of this year alone.
Both companies would bring large investment needs to the table — neither is generating enough operating cash to self-fund growth.
Musk’s history with self-dealing mergers raises red flags for some observers. Tesla previously acquired SolarCity for $2.6 billion in stock in what many viewed as a bailout. More recently, Musk’s xAI bought Twitter’s successor X for $45 billion, then SpaceX acquired xAI at a $250 billion valuation — a chain of transactions that consistently benefited Musk at the expense of minority investors in the acquired companies.
SpaceX’s IPO governance structure is notably tilted in Musk’s favor. His Class B shares carry 10 votes each, giving him 85% control of the company. SpaceX also does not require independent directors and mandates arbitration for shareholder disputes.
Tesla shareholders would get a vote on any merger — Musk holds roughly 20% of Tesla, not a controlling stake. But if a deal goes through, their effective ownership in the combined entity would shrink, and they would inherit SpaceX’s governance terms.
Investors looking to exit should note a warning from Columbia’s Ewens: Tesla shareholders who have concerns may have trouble selling post-merger if the deal closes close to the SpaceX IPO, potentially inheriting lockup provisions or facing a declining SpaceX share price after an opening day pop.
David Trainer, CEO of research firm New Constructs, has said a SpaceX-Tesla combination would need to generate nearly $500 billion in profits and $2.2 trillion in revenue by 2035 to justify current valuations — roughly double the already ambitious targets SpaceX faces on its own.
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