The Treasury has issued a stark warning that a potential stock market listing by SpaceX, Elon Musk’s space exploration company, could accelerate a damaging exodus of British tech firms to American exchanges. The concern comes as SpaceX reportedly prepares for an initial public offering that could value the company at over $150bn, dwarfing the London Stock Exchange’s current tech offerings.
According to sources within the Treasury, officials fear that a successful SpaceX IPO would be a ‘gravity well’ pulling UK tech companies across the Atlantic. ‘Britain risks becoming a backwater for high-growth tech,’ one official noted. ‘If the market’s biggest rocket can’t lift off here, why would anyone else?’
The warning follows a trend of British tech firms choosing US listings. In 2021, Deliveroo’s disastrous London IPO left a sour taste, while chip designer Arm opted for a New York debut in 2023. The Treasury’s anxiety is that SpaceX, as a symbol of technological ambition and financial firepower, would cement the perception that London is a second-tier market for innovative companies.
‘This is about more than just one company,’ said Alastair Thorne, Chief Financial Editor. ‘It’s about the direction of capital flows. If SpaceX lists in New York, it will hoover up investor demand that might otherwise support a British SpaceTech sector. The Treasury is right to be worried: the UK’s tech ecosystem relies on a virtuous cycle of listing, liquidity, and reinvestment. Break that cycle, and you get a slow bleed of talent and capital.’
Market analysts point to structural issues. The UK’s pension funds have traditionally shied away from high-risk tech, preferring gilts and blue-chips. Meanwhile, US markets offer deeper liquidity, more analyst coverage, and a culture that rewards growth over dividends. ‘It’s a classic case of adverse selection,’ Thorne added. ‘The companies that stay in London are the ones that can't get a better deal elsewhere.’
The Treasury is reportedly considering reforms, including tax incentives for tech listings and allowing pension funds to allocate more to unlisted equities. But critics argue that tinkering won't solve the fundamental problem. ‘You cannot regulate your way to a vibrant tech market,’ said a former Bank of England official. ‘It requires a shift in investor mindset, which takes years. Meanwhile, the gravitational pull of Wall Street is overwhelming.’
For now, the SpaceX listing remains hypothetical. But the Treasury’s warning is a shot across the bows. If London fails to attract the next generation of space-age companies, it may find itself orbiting a financial universe dominated by US exchanges, with Britain’s tech sector drifting into irrelevance.
