GENIUS rule fight shifts to secondary markets as stablecoin issuers weigh DeFi reach

The federal stablecoin debate is moving into a more technical phase, and that is where the commercial consequences will be set. After Congress established the GENIUS Act framework, the immediate question was whether Washington would build a formal anti-money-laundering and sanctions perimeter for dollar stablecoin issuers. Treasury, FinCEN and OFAC have now answered that with a joint proposed rule. The harder question is what happens after an issuer mints a token and it begins circulating across self-custody wallets, peer-to-peer transfers and decentralized protocols. That secondary-market issue is becoming the central fault line in the next stage of U.S. stablecoin regulation.

Treasury’s proposal would treat permitted payment stablecoin issuers as financial institutions for Bank Secrecy Act purposes and require them to maintain anti-money-laundering controls as well as sanctions compliance programs. In broad terms, the agencies are trying to fit stablecoin issuance into an existing federal compliance architecture rather than inventing an entirely new regime. That is a meaningful milestone for the market. It suggests the federal government wants regulated issuers inside the banking-style supervisory perimeter, but it also means the details of customer due diligence, monitoring, reporting and blocking obligations now have to be translated into blockchain-native operating models.

A joint comment filed by the Hyperliquid Policy Center and Paradigm backs the core primary-market design but argues the proposal should be narrowed or clarified once activity moves downstream. Their argument rests on a practical distinction. Primary-market functions such as issuance, redemption and custody involve direct customer relationships, which means issuers have usable identity and compliance information. Secondary-market activity is different: a token may be moving between wallets or through smart contracts where the issuer is not a direct party and has little visibility beyond addresses and transaction data. In their view, extending issuer obligations too far into that environment risks imposing duties that cannot be meaningfully performed.

That concern is not just theoretical. The joint filing warns that if regulated issuers are held broadly responsible for open-network flows they cannot realistically monitor, they will be pushed toward permissioned deployments and away from public blockchain environments. The same filing also argues that an expansive reading could drag developers, validators and other protocol-layer participants closer to a compliance perimeter that Congress did not clearly assign to them. In other words, the question is not whether stablecoins should face rules. It is whether the final rule preserves a workable difference between supervising the issuer-customer relationship and supervising every downstream use of an issued token.

What makes the debate more important is that even firms supportive of the proposal’s overall structure are still asking for targeted guardrails. Anchorage Digital, in its own published comment letter, said the Treasury approach largely places obligations where regulated issuers can meet them, but it also asked for clarification on secondary-market sanctions liability, enterprise-wide AML and sanctions programs, and treatment of institutional customers. That is a useful signal. The split in the market is not a simple pro-regulation versus anti-regulation divide. A growing number of participants appear prepared to accept federal oversight so long as the final rule does not make issuers responsible for opaque activity they do not control.

For stablecoin issuers, the outcome will shape deployment strategy. A narrow, operationally realistic rule could strengthen the case for U.S.-regulated dollar tokens to circulate more broadly across exchanges, wallets and DeFi applications. A broad rule could produce the opposite result, encouraging issuers to limit functionality, ring-fence access or favor closed environments where compliance obligations are easier to operationalize. That matters for the competitive map of onchain dollars. If regulated issuers pull back from open rails, liquidity does not disappear; it can migrate to offshore or less supervised alternatives instead.

The final GENIUS implementation therefore matters well beyond legal drafting. It will help determine whether the United States creates a stablecoin framework that supports compliant participation in open networks or one that quietly channels activity into narrower, more controlled systems. For RWA markets, that distinction is critical. Tokenized cash is becoming the settlement layer for a much larger set of onchain financial products, and the rules governing how those dollars move after issuance will influence where future liquidity, product design and institutional adoption take shape.