UK authorities examine bets on HSBC and Lloyds failing amid manipulation fears
US-based prediction market Polymarket has begun accepting bets worth $77,507 on whether major banks, including UK lenders HSBC and Lloyds, will fail by the end of the year. The revelation has triggered alarm from UK authorities and lawmakers who fear the betting mechanism could incentivise market manipulation, insider trading, and trigger the kind of rapid bank runs that brought down Silicon Valley Bank and Credit Suisse in 2023.
The FCA has begun discussions with international regulators about prediction markets' impact on financial system integrity. Democratic MP Bobby Dean has called for UK authorities to contact US counterparts, warning that rapid growth in bank-related betting could exploit shifts in market sentiment. Polymarket's leadership argues the bets democratise access to financial information previously available only to institutional traders, whilst academics and European regulators counter that such platforms create "moral hazard" and are vulnerable to insider trading abuse.
- Polymarket taking $77,507 in bets on UK bank failures, raising insider trading and manipulation concerns.
- FCA and MPs alarmed; regulators fear betting could trigger bank runs or market instability.
- Platform argues it democratises financial information; critics warn of serious moral hazard risks.
New here? Start with this
A US-based betting platform has started accepting wagers on whether major British banks, including HSBC and Lloyds, will fail by the end of the year. The site, known as a prediction market, allows participants to wager money on the likelihood of future events happening. The bets on UK bank failures currently total tens of thousands of pounds.
UK financial regulators and lawmakers have expressed concern about these bets, fearing they could encourage market manipulation or the misuse of insider information to increase chances of winning. They worry that widespread betting on bank failures could trigger sudden panic withdrawals, known as bank runs, like those that brought down Silicon Valley Bank and Credit Suisse in 2023. Such runs can spread alarm through financial markets and destabilise the banking system.
Proponents of prediction markets argue they give ordinary people access to financial information and forecasting tools previously available only to large institutions. Opponents, including academics and some European regulators, contend that such markets can be exploited by those with insider knowledge and pose risks to financial stability.
Both sides, in good faith
The strongest fair case each way — we don't pick a winner.
The case for
Prediction markets provide valuable price discovery and democratise access to financial information previously confined to institutional traders. Markets for betting on bank outcomes already exist through derivatives and shorts; prediction markets simply make this transparent and accessible to ordinary participants. The information about banks' health is already reflected in markets—such platforms do not create risk, but surface existing sentiment and allow citizens to participate in information discovery alongside professionals.
The case against
Banking systems are uniquely vulnerable to self-fulfilling crises because they depend entirely on confidence and rapid deposit withdrawals. A concentrated betting market that financially incentivises bank failure creates moral hazard, potentially encouraging those with insider knowledge to act to trigger their profitable outcome. Whilst some derivatives markets already exist, a dedicated prediction market concentrating incentives for discrete failure events presents a materially different risk to financial stability, as the recent banking crises demonstrated how rapidly information spreads and destabilises these fragile institutions.
Read the full article at the source →
Originally published by The Guardian as “UK urged to act as Polymarket takes bets on whether HSBC and Lloyds will fail”.