Key Points
- Circle launched Digital Asset-Backed Borrowing, allowing eligible Circle Mint institutional customers to use Bitcoin as collateral for USDC liquidity.
- Customers deposit BTC, receive Circle’s wrapped cirBTC and supply it as collateral to supported third-party lending markets on Arc or Ethereum, with Morpho initially providing the lending infrastructure.
- The service expands Circle’s institutional offerings shortly after the launch of its Arc layer-1 network and adds another model for borrowing against Bitcoin without directly selling the underlying asset.
Circle Brings Bitcoin-Backed Borrowing to Institutions
Circle has launched a Bitcoin-backed borrowing service for eligible institutional customers, allowing Circle Mint users to access USDC liquidity while maintaining exposure to their Bitcoin holdings.
The service, called Digital Asset-Backed Borrowing, enables customers to deposit Bitcoin and mint Circle’s wrapped Bitcoin token, cirBTC. The token can then be supplied as collateral to supported third-party lending markets operating on Arc or Ethereum.
Morpho is the first lending protocol supported by the service, while Circle said it plans to add Aave and other lending protocols.
The rollout coincides with cirBTC becoming available on Arc, Circle’s newly launched layer-1 blockchain.
BTC Becomes Collateral for USDC Liquidity
Under the model, institutional customers deposit Bitcoin and receive cirBTC, which is backed 1:1 by Bitcoin held in custody by Circle National Trust.
The customer then supplies the wrapped asset as collateral through a customer-controlled wallet to a supported DeFi lending protocol.
Borrowed USDC is deposited directly into the customer’s Circle Mint balance, providing access to liquidity without requiring the customer to sell the underlying Bitcoin.
Circle said the borrowing positions are overcollateralized. Interest rates, collateral requirements and liquidation thresholds are determined by the third-party lending markets rather than Circle itself.
New York-based clients are excluded from the service.
Circle Expands cirBTC Across Its Infrastructure
Circle first launched cirBTC on Ethereum in June. The token provides a mechanism for bringing Bitcoin exposure into decentralized finance while maintaining the underlying BTC in custody with Circle National Trust.
The latest expansion connects cirBTC with Arc, Circle’s recently launched layer-1 blockchain designed around stablecoin payments and financial-market applications.
Arc uses USDC as its native gas token and supports tokenized assets, including BlackRock’s BUIDL and Circle’s USYC.
The combination of Arc, USDC and cirBTC gives Circle a broader infrastructure stack through which institutional customers can move between Bitcoin collateral and dollar-denominated liquidity.
Morpho Leads the Lending Integration
Morpho is the first third-party lending market integrated into Circle’s borrowing service.
The structure means Circle is not directly lending USDC against customer Bitcoin. Instead, customers supply collateral to external DeFi protocols through wallets they control, while those protocols determine the financial parameters of individual borrowing positions.
Circle said additional lending protocols, including Aave, are expected to be added.
This approach gives institutional customers access to multiple lending venues while allowing Circle to maintain its role as the issuer of USDC and custodian of the underlying Bitcoin supporting cirBTC.
Institutional Crypto Lending Continues to Expand
Circle’s launch follows several initiatives aimed at allowing institutional investors to borrow against crypto assets without removing those assets from established custody arrangements.
Anchorage Digital partnered with Kamino in February to enable institutions to borrow against staked Solana held at Anchorage Digital Bank, providing onchain liquidity while keeping collateral within qualified custody.
Lombard and Bitwise also developed a Bitcoin-backed borrowing model in March using Morpho’s lending infrastructure. That structure differed from Circle’s approach by being designed to keep the underlying Bitcoin in custody without wrapping or bridging it.
BitGo separately expanded institutional lending with a portfolio-based platform supporting borrowing and lending against liquid, staked and locked crypto assets held in custody.
The different models reflect a broader effort to connect institutional custody with decentralized lending markets.
Bitcoin Treasury Management Gets Another Liquidity Option
Bitcoin-backed borrowing can give institutions another method of accessing capital without immediately disposing of BTC holdings.
For Bitcoin holders, selling the underlying asset can reduce exposure to future price movements, while borrowing against collateral creates separate obligations involving interest, collateral ratios and liquidation risk.
Circle’s structure therefore adds USDC liquidity as another potential use case for institutional Bitcoin holdings, while leaving the lending-market parameters to third-party protocols.
The model also connects Bitcoin to Circle’s expanding stablecoin infrastructure rather than requiring institutions to convert BTC directly into fiat.
Outlook
Circle’s Digital Asset-Backed Borrowing service extends its stablecoin infrastructure into institutional Bitcoin-backed lending, combining BTC custody, cirBTC, USDC and third-party DeFi markets. The initial integration with Morpho and plans to add Aave and other protocols could broaden the number of lending venues available to eligible customers. The launch also strengthens the connection between Circle’s newly deployed Arc network and its broader digital-asset infrastructure as institutional demand for borrowing against crypto collateral continues to develop.
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