For the first time in financial history, ordinary people outside the City of London can take a position on whether the world’s largest banks will fail before New Year’s Eve — $77,507 (£58,530) of it, parked right now across contracts naming HSBC, Lloyds, JP Morgan and BNP Paribas. A number so small a mid-tier credit default swap desk could swallow it before lunch. Britain’s Financial Conduct Authority is panicking, the European Securities and Markets Authority is panicking, and a Liberal Democrat named Bobby Dean who sits on the Treasury committee has decided he too should panic. Every single one of them is panicking about the wrong thing — not prediction markets, but prediction markets for banks.
It has institutional eyes that cannot survive sunlight. The same City establishment that gave us the London Whale and the Co-op Bank debacle now wants you to believe that $77,507 of public bets is a threat to “market integrity.” The FCA is briefing its international counterparts. ESMA used its September risk report to warn that prediction markets are “rife with insider trading.” Even the UK, the US, Canada and the EU have already banned their citizens from the platform — and still roughly 150 countries’ worth of bettors can watch the price form in real time, which tells you exactly how little the censorship jurisdiction actually covers. The regulators’ complaint, in plain English, is that the public is being allowed to watch.
Neal Kumar, Polymarket’s chief legal officer, gave them the only reply they deserve. The information has always been public, he said; a retail employee should never have been locked out of access to information on a topic of this importance. Credit default swap desks have been trading this same probability for decades. Hedge funds have been trading this same probability for decades. Polymarket has simply taken the velvet rope off the door. You shouldn’t need a Bloomberg terminal to ask whether a bank is solvent. You shouldn’t need to work at JPMorgan to know what JPMorgan is worth on the day the rumour goes around. That is not a moral hazard. That is the cure for one.
The cases the regulators clutch are the same ones they always clutch when the public gets a new window. ESMA’s report notes that several newly created wallets generated $1.2m of profit before the US-Israel strike on Iran in February, and that a US soldier was charged for using classified information ahead of the US capture of Nicolás Maduro in January. In April, someone was suspected of tampering with the weather sensors at Charles de Gaulle airport used to settle Polymarket weather contracts; the tampering was detected and reported to police. Each is a real scandal. And each is a scandal of the state, not of the market — a scandal the closed-door CDS market has been quietly absorbing, with no headlines, no arrests and no learning, for thirty years. The wallets are traceable on-chain. The soldier was criminally charged. The prediction market didn’t invent insider trading. It put it on a stage.
Which is why Bubblemaps’s finding that 19 Polymarket accounts won 98 per cent of bets on KPMG-audited firms was treated as a five-alarm fire rather than a marketing success. Concentration of winners means the market works. It means the same handful of informed traders who always priced the banks correctly are still pricing the banks correctly. The banks’ defenders are furious because the public can now see it for free. Compare that record to the rate at which the FCA, the Serious Fraud Office or the Bank of England has actually caught insider dealing in opaque bank bonds, and the regulator’s panic looks less like protection of the public and more like protection of incumbents (federal probe call).
Dean — the same voice urging UK regulators to “get in contact with their counterparts in the US to raise concerns” — has now told the public exactly what those concerns are. He is afraid that customers might learn, on a Tuesday afternoon, what JPMorgan’s CDS book already priced in last Friday. He is afraid that a bank run, when it comes, will be visible to the same people it happens to. He is afraid that the next Silicon Valley Bank will not be able to fail quietly, because 150-odd countries’ worth of punters will already be screaming about it on a public order book. These are the things the City is begging us to outlaw.
Don’t.
A market where traders have real money on the line, where wallets are visible on-chain, where winnings go to the people who read the evidence correctly, is the most disciplined information environment in modern finance. Compare it to the alternative — opaque credit committees, off-book derivatives, regulators who learned about the SVB collapse and the Credit Suisse collapse the same way everyone else did, in 2023 — and the moral case stops being subtle. It is a Bank of England stress test that never sleeps and never costs the taxpayer a pound. Even the corporate side has begun to follow: Polymarket has hired institutional muscle at the top of its finance function, with Warren Jenson named as its first chief financial officer (Jenson hire) — a quiet, deliberate step toward exactly the operating discipline the regulators pretend only they can supply.
Dean warned that a rapidly escalating market on a bank “could even trigger bank runs.” Good. If HSBC and Lloyds are sound, Polymarket will price them at zero, the talking heads will move on, and we will all have wasted a Tuesday. If they are not sound, the public deserves to see the price form in real time rather than learn about it from a panicked press release issued by the Bank of England at six on a Friday evening. The right response to the FCA’s briefings is not to throttle Polymarket. It is to mandate that the banks themselves publish the same odds on their own dashboards, every minute, with the same volume behind them, so that the public and the regulator are looking at the same screen.
Until then, leave the platform alone. The 150 countries whose punters can still place these bets are doing the FCA’s job for it. Britain’s banks should be grateful, not terrified. The people who should be afraid of Polymarket are the people who have been quietly betting that nobody is watching.