JPMorgan Chase quietly severed its banking relationship with Polymarket in late 2025, notifying the prediction market platform in October that it would terminate services over unspecified regulatory concerns, according to a Financial Times report. The exit came just as Wall Street was moving in the opposite direction, with Intercontinental Exchange pouring billions into the same platform.
Polymarket's regulatory history explains why a bank the size of JPMorgan might tread carefully. The Commodity Futures Trading Commission fined the platform $1.4 million in 2022 for running an unregistered derivatives venue and barred it from serving U.S. users outright. It was only after the Trump administration eased federal rules late last year that Polymarket re-entered the American market in earnest.
A Debanking With an Asterisk
What makes JPMorgan's move notable is that it was not a clean break. The bank reportedly kept a foot in the door even after cutting off banking services, inviting Polymarket founder and CEO Shayne Coplan to a private client conference in February 2026 and signaling interest in potentially underwriting a future initial public offering. That is not the posture of an institution trying to distance itself entirely from the prediction-market business — it looks more like a bank managing regulatory exposure on one line of the relationship while keeping capital-markets doors open on another.
Wall Street's Bigger Bet
The contrast with Intercontinental Exchange, the parent company of the New York Stock Exchange, is stark. ICE's own investor announcement confirms the exchange operator has now funneled roughly $2 billion into Polymarket across a series of investments, including a $600 million round that closed in March 2026 on top of an initial $1 billion commitment made in October 2025. That capital arrived alongside a CFTC no-action letter issued last September that effectively blessed Polymarket's return to U.S. markets, even as the agency continues to examine the platform's marketing practices.
Polymarket has used that momentum to push its own valuation higher. The company was reportedly valued near $9 billion after ICE's October 2025 investment and has since been in early talks to raise roughly $1 billion at a valuation exceeding $20 billion — more than double where it stood less than a year earlier.
Why Banks Are Still Cautious
JPMorgan's decision underscores a persistent gap between how traditional finance treats crypto-adjacent platforms at the capital-markets level versus the retail-banking level. A firm can be attractive enough to court for underwriting business while still being too risky to hold a deposit account, particularly for a bank operating under close regulatory supervision. Polymarket now finds itself in the unusual position of having secured some of Wall Street's deepest pockets as an investor while losing one of its most important banking relationships in the same stretch of months.
