Circle Launches cirBTC Targeting Institutional DeFi Collateral Market

Circle has launched cirBTC, a wrapped Bitcoin product backed 1:1 by native BTC and redeemable through its infrastructure. Designed to establish an institutional-grade collateral standard for onchain credit markets, cirBTC holds its reserves in segregated accounts at Circle National Trust, a federally chartered bank. The company uses Chainlink’s Proof of Reserve to provide real-time, onchain verification of reserves rather than relying on monthly attestations.

Wrapped BTC tokens enable Bitcoin holders to deploy assets across lending protocols and decentralized exchanges without liquidating their holdings. Unlike wrapped tokens derived from futures contracts, cirBTC offers a straightforward tokenized representation of spot BTC, removing tracking risks and roll costs. Furthermore, Circle does not lend or rehypothecate reserve assets and refrains from operating proprietary exchanges, aligning its incentives with neutral market adoption.

The product targets institutional borrowers such as miners, trading firms, and corporate treasuries, allowing them to collateralize BTC to secure loans often denominated in USDC. cirBTC has initially launched on Ethereum and Arc, a permissioned blockchain, with plans for multichain deployment. This integration allows institutional participants to access liquidity and manage risk across established DeFi platforms.

As of September 11, 2026, Bitcoin traded at $78,752, representing a 24-hour increase of 2.05%. The introduction of cirBTC comes amid growing demand for BTC-backed credit infrastructure, alongside developments such as Galaxy's hybrid DeFi borrowing product and Starknet’s lending infrastructure. Circle aims to differentiate cirBTC from existing wrapped products like WBTC by offering real-time reserve transparency and institutional safeguards.