A rocket maker that lost $4.9 billion last year just blew past Broadcom, TSMC, and Meta in three trading days.
SpaceX has added roughly a trillion dollars in market value since its public debut last week, vaulting into the six most valuable companies on earth. Fueled by nearly 50 percent stock gains across three sessions, its market capitalization hit $2.6 trillion, leapfrogging Broadcom, TSMC, and Meta along the way.
Picture the ticker board on Tuesday afternoon. A company that did not exist on public markets a week ago is suddenly trading shoulder to shoulder with Amazon and Microsoft, names that took decades to build. For a few minutes, SpaceX even jumped above both, before the stock cooled off and settled back. The bell rings, the gains stick, and Elon Musk is officially the richest person the world has ever produced.
What Happened
SpaceX did not just have a strong IPO. It had a strong week. After its blockbuster debut on Friday, Musk’s rocket and AI company posted double digit percentage gains on Monday and a 4.8 percent rise on Tuesday, pushing its market cap to $2.6 trillion. According to The New York Times, that is enough to make SpaceX one of the six largest companies in the world, trailing only Nvidia, Alphabet, Apple, Microsoft, and Amazon.
The climb was fast and methodical. SpaceX surpassed chipmaker Broadcom on Friday, overtook TSMC on Monday, and on Tuesday briefly rose above Amazon and Microsoft in intraday trading before giving back some of those gains.
The Backstory
SpaceX began life as a public company at a $1.8 trillion valuation. That starting line already made it bigger than Meta, Saudi Aramco, and Tesla, the other trillion-dollar company Musk runs. So the trillion-dollar pop since Friday is not the whole story. It is the second act of a debut that was already historic, building on a listing that had investors lined up well before the first share changed hands.
In other words, the market did not slowly warm to SpaceX. It opened hot and kept climbing.
The Plan
SpaceX is not letting the moment sit idle. On Tuesday, the company put its turbocharged stock to work, announcing the $60 billion acquisition of Cursor, an AI startup. That is the quiet tell here. A rocket company is spending like an AI company, because the stock it now holds is a currency it can deploy on ambition.
Musk’s significant stake, which includes a majority of voting shares, has made him the world’s first trillionaire. By Bloomberg’s count he is worth about $1.3 trillion. The next closest, Larry Page of Google, sits at a comparatively modest $314 billion. The gap is not a race. It is a chasm.
The Business Model Angle
Here is the pattern founders should study. SpaceX is being valued on belief, not on its current income statement. In its IPO filing, the company reported a loss of $4.9 billion on about $19 billion in revenue in its latest financial year. Compare that to Microsoft, which went public in 1986 and is worth nearly $3 trillion: last year it turned a $102 billion profit on roughly $282 billion in revenue.
So you have two companies separated by a few hundred billion in market value. One mints over $100 billion in annual profit. The other loses nearly $5 billion. The market is pricing them in the same weight class. The lesson is not that profits do not matter. It is that a credible enough story about the future can, for a window of time, outrun the math. The multiple lives in the narrative. The trick is whether the narrative converts into cash flow before the window closes.
The Risk
That gap between story and balance sheet is exactly where the danger sits. A $2.6 trillion valuation built on a $4.9 billion loss leaves no room for disappointment. Newly listed stocks are volatile, and SpaceX already showed it on Tuesday, surrendering part of its intraday surge above Amazon and Microsoft. Sentiment that lifts a stock a trillion dollars in days can reverse with similar speed.
The $60 billion Cursor deal raises the stakes rather than lowering them. Big acquisitions funded by a young, richly priced stock are a classic high-wire act. If growth slows or the AI thesis wobbles, a valuation untethered from current profit has a long way to fall before the fundamentals catch it.
Quick Questions
How much is SpaceX worth now?
About $2.6 trillion as of Tuesday, after adding roughly a trillion dollars in market value in its first few trading days.
Is SpaceX bigger than Amazon?
Not quite. It briefly passed Amazon and Microsoft intraday on Tuesday, but at the close it still ranks sixth, behind Nvidia, Alphabet, Apple, Microsoft, and Amazon.
Is Elon Musk a trillionaire now?
Yes. His majority-voting stake in SpaceX made him the world’s first trillionaire, worth about $1.3 trillion per Bloomberg. Larry Page is a distant second at $314 billion.
Is SpaceX actually profitable?
No. Its IPO filing showed a $4.9 billion loss on about $19 billion in revenue last year, which makes the $2.6 trillion valuation a bet on the future, not the present.
The Business Model Analyst Take
SpaceX just proved that in 2026, narrative is a balance sheet item. A company losing nearly $5 billion a year is sitting in the global top six, and using its stock to buy AI startups for $60 billion. For founders, the takeaway is not to ignore profitability. It is to understand that markets will fund a big enough vision, but only on credit. That credit comes due. The companies that survive the repricing are the ones that turn the story into real cash before the spotlight moves on.
