For a country that runs one of the world's great financial centers, Britain has an awkward problem: its public stock market is getting smaller. Companies are leaving it faster than new ones are joining, and the trend has become prominent enough that reviving the market is now talked about as a priority for whoever runs the Treasury next, as the Guardian's Nils Pratley has argued. For a global audience, it is a case study in how a financial center can hollow out.
What "the market shrinking" means
The London Stock Exchange (LSE) is where UK companies list their shares so the public can buy and sell them, and where firms raise money by selling new stock. The number of companies listed there has been falling, for three reasons that reinforce one another: existing firms are being bought and taken off the market, few new companies are floating to replace them, and some are decamping to list in the United States instead.
Takeovers are the most visible force. Private-equity firms and overseas buyers have been snapping up UK-listed companies they view as cheap, delisting them in the process; the acquisition of the investment platform Hargreaves Lansdown by a private-equity consortium is one prominent example. When a listed company is bought and taken private, it simply disappears from the public market.
The migration to New York
At the same time, some companies are choosing New York over London. The gambling group Flutter Entertainment, for instance, shifted its primary listing to the United States. Others weighing an initial public offering, the first sale of shares to the public, increasingly favor US exchanges, where they hope for higher valuations, deeper pools of investor money and a market more comfortable with fast-growing technology firms. Meanwhile the pipeline of new London IPOs has been thin.
The root cause: the valuation gap
Underneath all of this is one stubborn fact. UK-listed shares tend to trade at a meaningful discount to comparable American ones, often estimated at around 30% to 40% on common measures, meaning a company is valued less for the same earnings simply by being listed in London. That gap explains both symptoms at once. It makes UK companies bargains for private-equity and foreign buyers, encouraging takeovers, and it discourages founders from listing in London, since they would fetch a higher price in New York.
Why the discount exists is debated. A big part is that large UK investors, including pension funds, have shifted money away from domestic shares toward global and US markets over the years, leaving less home demand. London's market is also light on the giant technology companies that have powered US returns, and some issuers grumble about regulation and process. None of these has a quick fix.
Why it matters
A shrinking public market is more than a matter of national pride. Public markets are a transparent, disciplined way for companies to raise capital to grow, and for ordinary people, largely through pension funds, to share in that growth. As companies go private or list elsewhere, that capital-raising engine weakens, and the ecosystem of advisers, investors and expertise around it thins. For a financial center, losing listings chips away at the very business that makes it a center.
What is being tried
Policymakers have responded mainly by loosening the rules. The UK's financial regulator has overhauled its listing and prospectus regime to make raising money and going public simpler, with a new set of rules for public offers and admissions to trading set out by the Financial Conduct Authority. The hope is to remove friction and tempt companies back.
The skeptics' point, though, is that rules are not the core problem. If the valuation gap is really about where investors choose to put their money, then streamlining paperwork will not, on its own, close it. That would take reviving domestic demand for UK shares and making UK companies compelling enough that founders pick London on the merits. Until then, the quiet retreat is likely to continue, and Boursel takes no view on which policies will reverse it.
