SpaceX floated on the New York Stock Exchange this morning at $120 per share, a valuation that makes sceptics of fiscal prudence wince. The company, known for its Mars colonisation ambitions and reusable rockets, has attracted a flood of retail and institutional capital. But let’s cut through the hype. The real story is the quiet admission from a former ‘employee number one’ who credited British engineering talent for the firm’s early breakthroughs. That nod to UK expertise is a rare moment of substance in a market driven by narrative and momentum.
Consider the fundamentals. SpaceX’s balance sheet is a work in progress. Revenues from Starlink and launch services are growing, but the capital expenditure required for Starship development is staggering. The company burned through $5 billion in cash last year alone. At a $180 billion valuation, the price-to-sales ratio is over 20x, a multiple that would make even a growth investor blanch. This is not a stock for the risk-averse. It is a bet on Elon Musk’s vision, and history shows that such bets can be lucrative but volatile.
The mention of British engineering talent is a welcome reminder that the UK remains a powerhouse in aerospace. From Rolls-Royce to Babcock, the country’s engineering DNA runs deep. But government policy has done little to nurture this sector. Capital flight from London to New York continues, and the Treasury’s fiscal rules crowd out private investment. The UK’s R&D tax credits are generous on paper but bureaucratic in practice. If SpaceX’s success owed anything to British minds, it is a shame that so many of them had to leave to find their opportunity.
For investors, the debut raises a critical question: Will the market discipline SpaceX’s spending, or will it continue to reward ambition over profit? The latter is more likely in the short term, given the current liquidity bubble. But central banks are tightening, and the era of cheap money is ending. When the music stops, the highly leveraged might find themselves exposed.
As a financial editor, I watch the Gilt market with one eye and equities with the other. The yield on 10-year Gilts has ticked up to 4.2%, reflecting persistent inflation and rising borrowing costs. Against that backdrop, a stock with no dividend and uncertain earnings looks less attractive. Yet retail investors, egged on by social media and cheap brokerage, will pile in. It is the same pattern we saw with Tesla, Rivian, and the SPAC craze: hope of a revolution trumping the hard maths of discounted cash flows.
SpaceX’s debut is a reminder that the markets are not rational; they are emotional. The praise for British engineering is a footnote, but it underscores a larger truth: talent is global, and capital flows to where it is treated best. If the UK wants to retain its engineering edge, it must fix its fiscal house and incentivise innovation at home. Otherwise, we will continue to export our brightest minds to the highest bidder.
For now, I recommend caution. The IPO is a spectacle, but the bottom line remains: valuation matters. And at these levels, the margin of safety is thin.










