Woofun AI reports that Marex, a UK financial services group, has formally supported USDC as Initial Margin collateral within its regulated derivatives clearing business. This integration represents the first instance of a stablecoin entering traditional clearing infrastructure operations. Prime Trading, LLC executed the inaugural transaction, utilizing Coinbase’s infrastructure which includes custody services, instant fiat-to-USDC conversion, and customized daily reporting compliant with clearing industry standards. The initiative follows a "No-Action Letter" issued by the U.

S. Commodity Futures Trading Commission (CFTC) in December 2025, permitting Futures Commission Merchants to accept stablecoins, Bitcoin, and Ethereum as client margin collateral. Coinbase highlighted that USDC collateral offers round-the-clock liquidity, enabling institutions to align margin transfers with market hours rather than traditional banking schedules. Key capabilities provided include 24/7 instant USD-USDC conversion, NYDFS-compliant custody, and reporting systems meeting traditional asset recording and regulatory requirements.