The City listened closely this morning as Tom Mueller, SpaceX’s so-called ‘employee number one’ and the architect of its Merlin engines, offered his take on the company’s long-awaited public listing. For a man who helped build the rockets that now ferry astronauts to the International Space Station, his assessment of the market reception was characteristically blunt: “The valuation is a lot of hot gas. But the engines work.” It is a sentiment that resonates with a certain breed of British investor, weary of hype and hungry for substance.
Mueller’s comments come as the UK space sector, still smarting from the collapse of Virgin Orbit and the slow crawl of its own national launch ambitions, eyes a closer partnership with Elon Musk’s behemoth. The pitch is simple: Britain has the regulatory environment, the financial infrastructure, and a proven track record in satellite manufacturing. What it lacks is a reliable ride to orbit. And SpaceX, now a public company with a market cap north of $250 billion, is the ride.
But let us not get carried away by the spectacle of a rocket launch. The financial realities are sobering. The UK government’s recent commitment of £1.8 billion to the European Space Agency is a fraction of what it would take to build a sovereign launch capability. And with inflation still gnawing at real returns and gilt yields hovering near 4.5%, the fiscal headroom for ambitious space programmes is limited. The Treasury, as ever, views such spending through the lens of the bottom line: what is the return on investment for the British taxpayer?
Mueller’s own journey from a garage in California to a public company event captures the essence of what markets reward: innovation that scales. SpaceX’s rockets are reusable, its launch costs are the lowest in the industry, and it has a monopoly on crewed missions to the ISS. These are the fundamentals that underpin its valuation. But as any City analyst will tell you, a stock price is only as good as the next quarterly earnings. And with SpaceX facing competition from Blue Origin, Rocket Lab, and a slew of Chinese state-backed ventures, the moat is getting narrower.
For the UK, the opportunity lies not in trying to copy SpaceX but in carving out niches. One such niche is satellite constellation management, where British firms like OneWeb and Inmarsat have established footholds. Another is space-based services for finance and insurance, areas where the City already holds a comparative advantage. But none of this will happen without a coherent strategy from Whitehall. The usual shuffling of ministerial portfolios and the perennial churn of civil servants do not inspire confidence.
Mueller, for his part, offered a piece of advice to British entrepreneurs: “Focus on the engineering. The money follows.” It is a maxim that could apply to the UK’s own economic predicament. We have the talent, the university research, and the financial depth. But we lack the killer instinct to commercialise innovation at scale. The vacuum left by the retreat of pension funds from venture capital has not been filled. And the spectre of capital flight, as investors seek higher returns in the United States, remains a drag on the sector.
The bottom line is this: SpaceX’s market debut is a reminder that in the new space race, the winners are those who can deliver costs down and cadence up. The UK can be a partner, but it must decide whether it is willing to spend the capital and bear the risk. Until then, we will continue to watch launches from Cape Canaveral, envying the view while nursing our fiscal constraints.
