MP warns Polymarket bank bets could trigger real bank runs

An MP on the Treasury Committee warns Polymarket’s bank-collapse markets could help cause the panic they bet on.

The hit

Polymarket is letting users bet on whether major banks will collapse before the end of 2026, & UK lawmaker Bobby Dean warns the activity itself could help trigger a bank run. More than $77,000 has been traded on the market, according to The Guardian. HSBC, Lloyds, JPMorgan Chase, BNP Paribas, Bank of America & Goldman Sachs all feature.

Why it matters

Banks run on confidence, not just balance sheets. A fast-moving public market tracking failure odds could spook depositors the same way social media accelerated withdrawals during the 2023 collapse of Silicon Valley Bank. Polymarket says its markets make information already available to professional investors more accessible to the public. Banks & hedge funds have long traded credit default swaps on similar logic, the article notes.

The record

Banks listed as possible failures	HSBC, Lloyds, JPMorgan Chase, BNP Paribas, Bank of America, Goldman Sachs
Failure probability on Polymarket	Low single digits for HSBC & Lloyds
UK binary options ban cited by FCA	In force since 2019

What happens next

The FCA says it is discussing prediction markets with overseas regulators, & the Bank of England is monitoring developments, according to The Guardian.

Sources: Polymarket Bank-Failure Bets Spark Fears of Self-Fulfilling Bank Runs

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