Circle Deploys Wrapped cirBTC on Ethereum and Arc to Expand Institutional Lending

Circle has deployed cirBTC, a wrapped Bitcoin token backed 1:1 by native Bitcoin in segregated custody, across Ethereum and the Arc Layer-1 network. Verified via Chainlink Proof of Reserves, cirBTC lets institutional users borrow USDC without selling Bitcoin holdings. The rollout follows Arc's September 21, 2026 mainnet debut, where cirBTC collateral facilitated over $150 million in USDC borrowing. Morpho Blue vaults attracted more than $150 million in deposits, with initial liquidity curated by Galaxy Digital and Keyrock alongside planned integrations with Aave.