JPMorgan reportedly told Polymarket to find a new bank in Oct. 2025
The bank was still said to be open to IPO underwriting even after exiting day-to-day banking exposure.
JPMorgan Chase reportedly ended its banking relationship with prediction-market platform Polymarket in October 2025, telling the company to find a new bank due to regulatory concerns. Polymarket has since moved to an unnamed lender, while JPMorgan is still said to be interested in underwriting if the company pursues an IPO.
JPMorgan reportedly ends Polymarket banking tie, citing regulatory concerns
JPMorgan Chase told Polymarket in October 2025 that it needed to find a new bank, ending a banking relationship over regulatory concerns, according to a report citing people familiar with the matter. Polymarket has since shifted to another lender, which was not identified.
For a venue that depends on reliable fiat rails, the practical issue is less the headline and more the operational friction that can follow. When a bank exits, it can compress the margin for error around deposits and withdrawals, vendor payments, and any onboarding or offboarding flows that touch the traditional banking system, even if the platform’s core product remains live.
The scope of the change is still unclear. The report did not specify which services were terminated, whether the decision covered deposits and payments only or extended to other facilities, and it did not name the regulator concerns that triggered the move.
There is also a tension in how the relationship is described. Polymarket said it continues to have a “close, active relationship” with JPMorgan, suggesting that whatever ended in October 2025 may have been narrower than a full severing, or that other commercial ties remained in place. Neither JPMorgan nor Polymarket provided an on-the-record response in the report.
Regulatory squeeze on prediction markets meets IPO optionality
The same report framed the banking exit inside a broader regulatory squeeze on prediction markets in the US and abroad. More than a dozen US states have taken legal action against Polymarket, Kalshi, or both over sports event contracts, a product category that tends to pull in overlapping gambling and derivatives questions depending on how it is structured and where it is offered.
Outside the US, authorities in several countries have also blocked or restricted access to Polymarket, adding a second layer of risk that is harder for banks to price cleanly. Even when a platform can route around a specific jurisdictional restriction, the compliance overhead and reputational exposure can still land on counterparties that provide fiat access.
Against that backdrop, the reported IPO angle reads like a separate risk bucket. JPMorgan was described as being keen on a potential underwriting role if Polymarket attempts to go public, even after telling the company to find a new bank. Underwriting fees sit in the capital-markets lane, where exposure is episodic and heavily papered, while day-to-day banking services create continuous compliance touchpoints.
The next confirmations are procedural, not narrative.
1. New bank identity and scope: Whether Polymarket’s new banking partner provides full USD deposit and withdrawal rails, or only limited services, will determine how much real access risk traders should price. 2. State-level escalation: Any new injunctions, settlements, or product restrictions tied to sports event contracts involving Polymarket, Kalshi, or both would clarify whether the pressure is intensifying or stabilizing. 3. Cross-border access changes: Additional country-level blocks or restrictions would matter directly for liquidity and user access, especially if they affect major user corridors. 4. Concrete IPO steps: A named underwriting mandate, a filing, or any formal listing preparation would be the first hard evidence that the underwriting interest is more than optionality.
My read: debanking risk is rising even when banks still want the fee pool
The filing-equivalent detail here is the October 2025 timing and the fact pattern: a major bank reportedly stepped away from providing banking services while keeping other ties on the table. That is what “regulatory concerns” looks like in practice when it moves from commentary to operations, and it tends to hit platforms through access and continuity long before it hits them through a clean product shutdown.
The threshold that matters is whether Polymarket can secure durable, full-service USD rails without paying a punitive compliance premium, because the coexistence of a banking exit and alleged IPO-underwriting interest looks like ring-fencing day-to-day exposure while keeping a path to fee-generating capital-markets business if the regulatory picture improves.
