Polymarket's US Return: What the QCEX Deal Actually Changed

Polymarket returned to US users in December 2025, nearly three years after the CFTC settlement forced it to geoblock the country. The return did not happen because the law changed. It happened because Polymarket bought a company that already had the licence.

In July 2025, Polymarket acquired QCEX, a small CFTC-regulated exchange and clearinghouse, for a reported $112 million. The CFTC approved an amended order of designation in November 2025, enabling what the company called intermediated US market access. US users could then trade on a domestic venue operated under the QCEX umbrella.

That structure is the key to understanding everything that follows. Polymarket is not one platform. It is a global offshore venue and a US regulated venue, with different rules and different market lists.

What "intermediated access" means

The US venue does not work exactly like the global crypto app. Access is intermediated, which generally means users go through a regulated broker or a Polymarket US interface that performs identity checks and reports to the exchange. The exchange is a designated contract market, not an offshore crypto venue.

That brings KYC, surveillance and record-keeping. It also brings limits. Polymarket's US venue excludes some of the categories that made the global platform famous, including markets on death and certain war-related events. The Polymarket vs Kalshi comparison explains how the two US venues differ.

What did not change

The international platform still exists. It still lists markets on elections, conflicts, awards and crypto prices. It still operates under a non-US entity. And it still blocks US users, at least in theory.

The 2026 CFTC inquiry into whether Polymarket complied with its 2022 settlement focused on exactly that boundary. Reuters reported that investigators were reviewing geolocation controls, US advertising and safeguards on the domestic platform. The CFTC settlement article has the details.

So the US return did not end the dual structure. It formalised it.

What happened to the global app for US users

The return did not reopen the global platform to US residents. It created a separate domestic product. A US user who previously used a VPN to reach the international site is now supposed to migrate to the regulated venue, with its own account, identity checks and market list.

That migration is incomplete in practice. Some users prefer the global app because it has more markets and no identity verification. Some use VPNs to keep access. The CFTC's 2026 inquiry into Polymarket's compliance focused on whether the company did enough to stop that behaviour.

The company's position is that it geoblocks the US and cooperates with regulators. The regulator's position is that geoblocks are only as good as their enforcement. The gap between the two is the space where legal risk lives.

The first year in numbers

The US venue's first year was small relative to Polymarket's global business. Kalshi, which had a multi-year head start and a sports-heavy book, held roughly 90% of the US market. Polymarket's US product was still building liquidity and brand recognition.

That does not make the return a failure. It makes it an option. Polymarket now has a legal path into the largest regulated market, and it can scale if the legal environment allows. The investors and valuation article explains why that option is valuable.

The competitive problem

Polymarket's US venue is small compared with Kalshi. Kalshi has roughly 90% of the US prediction market, according to a Bank of America estimate cited by CNBC, and sports account for most of its activity. Polymarket's global brand is bigger, but its US footprint is limited.

That matters because the US is where the regulated revenue is. Polymarket's global business is larger by volume, but it faces bans in more than 30 jurisdictions. The global bans map shows how fragile the international base is.

The US venue also faces state litigation. Nevada, Massachusetts, Wisconsin and other states have argued that prediction markets are unlicensed gambling. The state regulators article explains the cases.

The first year also revealed a branding problem. "Polymarket" now refers to two products with different rules. A user who reads a review of the global app may be surprised by the US venue's restrictions, and a user who reads about the US venue may not realise that the global platform has more markets.

That confusion is not accidental. It is the result of building a global brand on top of a fragmented legal structure.

What US users should know

If you are in the US, the relevant product is the domestic venue, not the global app. That means:

• Verify which entity holds your account and which terms apply.
• Expect identity verification and tax reporting.
• Check whether the market you want is listed domestically. War and death markets are generally excluded.
• Understand that state law may restrict access even if the CFTC has approved the exchange.
• Keep records of deposits, withdrawals and trades. The tax guide explains why.

If you are outside the US, the global platform may be available, but local gambling law still applies. The user legal risk guide covers the questions to ask.

The strategic bet

Polymarket's US return is a bet that the CFTC will remain the primary regulator of event contracts and that the states will eventually lose their preemption fight. If that bet is right, the QCEX deal looks cheap. If it is wrong, the company has bought a licence that state courts can neutralize.

The federal preemption article explains the legal stakes.

For traders, the practical lesson is simple: "Polymarket" is not a single legal environment. The venue, the entity and the jurisdiction matter more than the brand. Check which one you are using before you deposit.