Polymarket International

We reject the product reviewed here, Polymarket International, which is not the separate US-regulated application. Polymarket’s own current help center says polymarket.com is for international users, blocks United States residents from depositing or trading, and keeps accounts entirely separate from the US-only Polymarket app operated by CFTC-regulated QCX LLC. The international site identifies Adventure One QSS Inc. and expressly states that this product is not regulated by the CFTC. Its on-chain mechanics are real. pUSD collateral backs ERC-1155 Yes/No outcome tokens, a hybrid central limit order book matches signed orders off chain for atomic Polygon settlement, and the UMA Optimistic Oracle resolves markets. Those features do not make the international venue eligible for a US RIA client. The historical CFTC order against predecessor operator Blockratize, with a $1.4M penalty and a required wind-down of noncompliant markets, makes the current legal-entity and product boundary central to the decision, not a cosmetic geoblock.

Review triggers: events that reopen the verdict
• Polymarket International becomes legally available to United States clients under the same registered-venue protections as Polymarket US
• Adventure One QSS Inc. obtains and publishes the registration or exemption governing the international event-contract venue
• A market clarification changes the economically reasonable interpretation of an open position or a final UMA resolution departs from the cited source
• A proposed-size position cannot exit through the order book or pUSD offramp within one business day under normal market conditions

Confirmed 2026-09-25: 37 days quiet, TVL $353M, no open item. Holds to 2027-09-26 while the watch stays quiet.

The research file

Product identity and categorical access bar

Polymarket now offers two legally and operationally distinct products. Its June 2026 help-center explanation says polymarket.com serves international users and does not permit US residents to deposit funds or place trades. US residents must instead use the Polymarket US application. Its accounts and support system are not connected to the international site. The international footer names Adventure One QSS Inc. and says that, unlike QCX LLC d/b/a Polymarket US, it is not CFTC-regulated. The worklist slug and DefiLlama TVL in this memo belong specifically to `polymarket-international`. Approval based on QCX’s registration would therefore apply one legal entity’s status to another entity’s product and capital pool.

Mechanism and return source

Each market has Yes and No ERC-1155 outcome tokens on Polygon under the Gnosis Conditional Token Framework. One pUSD of collateral can be split into one token of each outcome. A complete pair can be merged back into one pUSD, while the winning token redeems for one pUSD and the losing token for zero after resolution. pUSD is a standard ERC-20 wrapper backed by USDC through an on-chain collateral adapter. Trading uses a hybrid CLOB. Users sign EIP-712 orders, Polymarket matches them off chain, and the Exchange contract settles matched trades atomically. Return comes from binary event exposure or market-making spread and rebates. It is not yield from a productive underlying asset, and the premium paid can be lost in full.

Resolution, control, and audit surface

The UMA Optimistic Oracle resolves a market under prewritten rules and against an identified source. A proposer posts a bond, an initial challenge window lasts two hours, and a second dispute goes to the UMA Data Verification Mechanism. Token-holder voting can extend finality by four to six days. Polymarket may publish on-chain clarifications after trading begins if it says they do not change the question’s fundamental intent. Rule drafting, clarification, oracle incentives, and UMA governance therefore have material control over the client’s claim. The current contract registry publishes addresses and March 2026 Quantstamp and Cantina audits for CTF Exchange V2. That is a real security improvement, but it does not turn a prediction claim into a regulated US product.

Regulatory and incident record

In January 2022 the CFTC ordered Blockratize, Inc., then doing business as Polymarket, to pay a $1.4M civil penalty, wind down markets that did not comply with the Commodity Exchange Act, and stop offering off-exchange event-based binary options without DCM designation or SEF registration. The Commission found that the paired event contracts were swaps under its jurisdiction. The current international operator and current contract stack are not the same as that historical corporation. Still, the order shows why the present separation matters. Polymarket US now identifies a registered QCX venue, while the capital counted under this slug remains on a separate international platform that is explicitly unregulated and blocks US users.

Exit and comparison

Before resolution, a holder can exit only by finding an order-book buyer at the prevailing price or by merging a complete Yes/No pair. A one-sided position can gap sharply as news changes and has no par redemption. After resolution, winning tokens burn for pUSD. The bridge path unwraps pUSD through the collateral offramp and uses a Uniswap V3 pool for native USDC. Polymarket warns that this pool may be exhausted and suggests splitting withdrawals over $50,000 or waiting for rebalancing. Direct pUSD withdrawal avoids that pool but may not be accepted by exchanges. Compared with Polymarket US, the international product lacks the relevant CFTC venue registration and client eligibility. Compared with holding cash, it adds binary loss, market-liquidity, rule-interpretation, oracle, and stablecoin-wrapper risks with no portfolio necessity for this mandate.

Sources

The claims above trace to these. Where a number could not be independently verified, the thesis says so.

• Polymarket Help Center — International website versus US app · primary · accessed 2026-08-19
  Supports: separate international and US products, US residents cannot deposit or trade internationally, accounts are not connected
• Polymarket Help Center — geographic restrictions · primary · accessed 2026-08-19
  Supports: United States blocked, VPN prohibition, country restriction logic
• Polymarket documentation — positions and tokens · primary · accessed 2026-08-19
  Supports: ERC-1155 outcome tokens, pUSD backing, split, merge, and redemption mechanics
• Polymarket documentation — market resolution · primary · accessed 2026-08-19
  Supports: UMA proposal and dispute process, resolution timing, clarification authority
• Polymarket documentation — contracts and audits · primary · accessed 2026-08-19
  Supports: deployed Polygon contracts, Quantstamp and Cantina March 2026 audits
• Polymarket documentation — withdrawal · primary · accessed 2026-08-19
  Supports: pUSD offramp, Uniswap liquidity exhaustion warning, large-withdrawal guidance
• CFTC — 2022 Polymarket enforcement release · primary · accessed 2026-08-19
  Supports: $1.4M penalty, binary-option swap finding, wind-down and cease-and-desist order
• DefiLlama — Polymarket International protocol data · secondary · accessed 2026-08-19
  Supports: international slug identity, Polygon chain perimeter, current TVL

Inherited controls

The research above describes the protocol layer. Every position also inherits the asset it holds and the chain it settles on. The layer with the most administrative power sets the position’s effective control; that describes control, not quality or suitability.