For months "Tesla SpaceX merger" was a rumour that Elon Musk's fans liked and his critics feared. On Tuesday, October 20, it became a formal process.
On SpaceX's third-quarter earnings call, Musk said the boards of both companies have set up special committees of independent directors to evaluate a possible combination. He called it "a good idea", said he is walled off from the talks, and stressed that no terms have been agreed and a deal is not a certainty.
He said it on the day SpaceX reported its best quarter ever: revenue up 161% to $14.6 billion, a $4.4 billion profit, and a business in which artificial intelligence now brings in more money than Starlink.
If you own Tesla shares directly, or through an index fund, this is the most important thing that has happened to your investment this year, and it is happening a few hours before Tesla's own results. Here is what is confirmed, what is speculation, and what it could mean for your money.
What is confirmed
| Fact | Status |
|---|---|
| Both boards formed special committees of independent directors | confirmed by Musk on the October 20 call; reported to be at shareholders' request |
| Musk supports a merger | confirmed, he called it "a good idea" |
| Musk is excluded from the committee work | confirmed, by his own account |
| Terms, price or exchange ratio | none agreed |
| A deal will happen | not certain, Musk said so himself |
| Committee members named | no |
| Timing | no official date; one Barclays analyst said a deal could be unveiled before Tesla's December 3 annual meeting |
Musk named the areas where the two companies already work together or could: AI development, chip design, robotics, Terafab, a joint chip plant being built in Grimes County, Texas, and space infrastructure.
SpaceX's quarter: why this is happening now
The timing is not an accident. SpaceX, which went public in June at $135 a share and raised about $85.7 billion, has just shown investors a very different company from the rocket maker most people imagine.
| SpaceX, third quarter 2026 | Figure |
| Revenue | $14.6 billion, up 161% from $5.6 billion |
| Net income | $4.4 billion, against a $1.1 billion loss a year earlier; its first profitable quarter as a public company |
| AI ("Super Intelligence") revenue | $7.6 billion, up from $813 million |
| of which Cursor, acquired on August 14 | $608 million |
| Starlink and connectivity revenue | $5.2 billion, up 69% |
| Starlink consumer subscribers | 13.6 million, average $69 a month |
| Space (launches and other) | $1.8 billion |
| Capital spending in the quarter | $19.6 billion, of which $16.4 billion on AI |
| Capital spending expected next quarter | $35 billion to $40 billion |
| Cash and marketable securities | about $90 billion |
Three things stand out. First, AI is now SpaceX's largest business, driven by Grok, by renting out computing capacity, and by Cursor, the AI coding tool it bought at an implied value of $60 billion. Second, Starlink is a steady, growing subscription business. Third, the spending is enormous: $19.6 billion in one quarter, and up to twice that planned for the next.
A company spending $35 billion to $40 billion a quarter needs a lot of chips, a lot of power and a lot of manufacturing. Tesla has the factories, the battery and energy business, the self-driving software and the robots. That is the logic Musk is selling.
The case for and against, in plain words
The case for. Musk wants one company that owns the whole chain: chips, AI models, the computers that train them, the energy that runs them, the robots and cars that use them, and the satellites that connect them. Rivals have to buy much of that from others. Under one roof, Tesla's Optimus robots could run on SpaceX's AI, Terafab could make chips for both, and Tesla's energy storage could power SpaceX's data centres. For Tesla shareholders it could mean owning a piece of a profitable, fast-growing AI and Starlink business rather than only a car maker whose profits are shrinking.
The case against. The two businesses have very different finances. Starlink earns high margins. The AI business is growing fast but spending far more than it earns, and the combined company would inherit those bills. Tesla's analysts already expect lower profits this quarter, and Tesla plans to spend more than $25 billion this year, roughly three times last year. Critics also point to the obvious conflict of interest: Musk controls more than 80% of SpaceX's voting power but owns only around a fifth of Tesla, so the exchange ratio, how many SpaceX shares each Tesla share is worth or the other way round, matters enormously to ordinary Tesla holders.
How a deal would be approved
This is the part that gives ordinary shareholders real power.
| Company | What approval would need |
| SpaceX | easier, because of Musk's controlling voting power |
| Tesla | according to Musk, a majority of all outstanding shares, not just of the shares that vote |
That second line matters. It means every Tesla shareholder who does not vote effectively counts as a "no". Retail investors, who own a large slice of Tesla, could decide the outcome. If a deal is proposed, there will be a proxy statement with the terms, and you will get a vote.
What it means for your money
If you own Tesla shares directly, do nothing hasty. There is no deal, no price and no exchange ratio yet. The decision point comes when terms are published. At that moment the questions to ask are simple: how many shares of the new company do I get for each Tesla share, what is that worth compared with Tesla on its own, and how much of the AI spending am I taking on.
If you own an S&P 500 or Nasdaq index fund, you almost certainly own Tesla already, and your fund's exposure would change automatically if a deal went through. You do not need to act, but it is worth knowing that a growing share of your savings sits on a handful of AI spenders, a point I made about Meta in Meta's October 21 earnings.
If you are thinking of buying Tesla because of the merger news, remember that the shares rose after hours on the announcement, so some of the hope is already in the price. Whether that suits you depends on your own situation, and a licensed adviser is the right person to ask.
If you care about the robots, a merger would put Optimus inside a company with far more AI computing power and cash. That could speed things up. It would not change the basic picture today: Optimus still has no price and no order page, as I set out in what to watch for Tesla Optimus.
What to watch next
Tonight, October 21: Tesla's own results. Analysts expect earnings of about $0.45 a share on roughly $28 billion of revenue, after market close, with the call at 5:30 p.m. Eastern. Musk has previously said it would be inappropriate to discuss a deal on an earnings call, so do not expect merger details. Do expect questions about spending, Optimus and the robotaxi.
The committees' first move. Names of the committee members, advisers being hired, or a public proposal would show how seriously the process is moving.
December 3: Tesla's annual meeting. One analyst expects a deal could be announced before it.
The exchange ratio. When it comes, it is the single number that decides whether Tesla shareholders win or lose from this.
The honest take
What strikes me about this week is how quickly the shape of Musk's empire has changed. A year ago SpaceX was a private rocket company and Tesla a car company with a robot side project. Today SpaceX makes more money from AI than from anything else, and both companies are studying whether to become one.
The idea has a real logic. AI needs chips, power, factories and connectivity, and Musk owns businesses in each of those. But logic is not value. The question for ordinary shareholders is not whether a multi-trillion-dollar company can be built, it is whether the price they are offered is fair, and whether the combined spending earns its keep.
So if you hold Tesla: when the terms arrive, will you read them, and will you vote?
This article will be updated as the special committees make progress and after Tesla's October 21 results.
Frequently asked questions
Are Tesla and SpaceX merging?
Not yet. On October 20, 2026, Elon Musk said both boards had formed special committees of independent directors to evaluate a possible merger. No terms have been agreed, and Musk said a deal is not a certainty.
What did SpaceX report for Q3 2026?
Revenue of $14.6 billion, up 161%, and net income of $4.4 billion, compared with a $1.1 billion loss a year earlier. AI was its largest segment at $7.6 billion, ahead of Starlink and connectivity at $5.2 billion.
How would a Tesla SpaceX merger be approved?
Each company's special committee would have to agree terms. According to Musk, Tesla's approval would require a majority of all outstanding Tesla shares, not just of those voting, which gives retail shareholders significant influence.
What would happen to my Tesla shares in a merger?
That depends on the exchange ratio, which has not been set. Shareholders would receive a proxy statement with the terms and a vote before any deal closes.
When could a merger be announced?
There is no official timeline. One Barclays analyst said a deal could be unveiled before Tesla's annual meeting on December 3, 2026.
What is Terafab?
A chip manufacturing plant in Grimes County, Texas, being built jointly by SpaceX and Tesla, which Musk cited as one of the areas the companies already cooperate on.
Sources: Axios: SpaceX and Tesla explore merger, Musk confirms; Fox Business: Musk says merger would be "a good idea" as companies form special committees; Drive Tesla Canada: special committees to evaluate a possible merger; Tesla North: SpaceX Q3 2026 results; MarketBeat: SpaceX Q3 2026 earnings and call; Yahoo Finance: Tesla Q3 preview and merger speculation; Electrek: Tesla Q3 2026 earnings preview.
