Circle Launches StableFX for 24/7 Institutional-Grade Onchain FX Trading

• Circle launches StableFX, a 24/7 institutional stablecoin FX engine.
• On-chain settlement reduces counterparty and settlement risk.
• Circle Partner Stablecoins expand regional currency support.
• Arc blockchain enables real-time, programmable FX execution.

Circle has introduced StableFX, a new stablecoin-powered foreign exchange engine designed for institutional participants. The foreign exchange market remains the world’s largest, yet it is heavily reliant on outdated systems. Traditional FX infrastructure suffers from fragmented venues, prefunded accounts, and slow settlement cycles.

StableFX aims to modernize this space by combining request-for-quote (RFQ) execution with instant on-chain settlement. The platform delivers competitive pricing across multiple liquidity providers and executes payments in a single atomic transaction, ensuring funds are either fully delivered or not delivered at all. This mechanism dramatically reduces settlement risk.

Additionally, StableFX operates 24/7 with a capital-efficient design, enabling programmable settlement windows and netting models. Institutions no longer need complex bilateral agreements, streamlining access to global liquidity. Currently, the protocol is running successfully on the Arc Testnet and is scheduled to go live on the Mainnet in the year 2026.

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Circle Partner Stablecoins: Expanding Regional Access

Circle Partner Stablecoins represents a new project that aims to promote a list of regional stablecoins within the framework of the Arc system. The project introduces a new opportunity for the list of stablecoins other than the dollar to work within the StableFX environment.

The list of original participants is inclusive of AUDF, BRLA, JPYC, KRW1, MXNB, PHPC, QCAD, and ZARU. The Circle Payments Network and StableFX enable a seamless connection to the USDC.

The partner stablecoins receive increased visibility and interaction within the digital assets environment and also help towards the creation of a more integrated financial system. This program increases the list of currencies that are supported within the on–chain FX offering for institutions.

A Global Financial System on Stablecoin Rails

Together with Arc and Circle StableFX, and Partner Stablecoins, these enable a single Stack that works well with modern FX. While Arc provides a programmable settlement framework, StableFX links traders and sources of liquidity, and Partner Stablecoins add additional currencies that can be used.

The result is a borderless financial network where liquidity flows freely, and transactions are instantaneous. This is presented by Circle as the future of the FX market and is open to participation by fintech firms, banks, payments companies, trading firms, and issuers of stablecoins.

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