TL;DR:
Circle launched cirBTC, its wrapped bitcoin version, now available on the Ethereum network. The token is backed 1:1 by native bitcoin and allows users to access their BTC position within decentralized finance protocols, such as lending markets, decentralized exchanges, tokenized assets and stablecoins. This marks the company’s formal entry into the synthetic bitcoin market, currently dominated by BitGo’s wrapped bitcoin (wBTC) and Coinbase’s cbBTC.
The synthetic bitcoin token market has a total capitalization oscillating between $12.5 billion and $13.5 billion, equivalent to approximately 1% of the total value of the Bitcoin network, estimated at around $1.25 trillion. Within that universe, wBTC is the strongest, with roughly $7.3 billion in market cap, followed by cbBTC with just under $5.4 billion. Circle seeks to capture a share of that market by targeting primarily institutions looking for bitcoin exposure.
Circle’s central argument for promoting cirBTC over its competitors is institutional neutrality. Unlike Coinbase, which operates its own centralized exchange, Circle does not manage trading platforms or its own lending protocols, which eliminates potential conflicts of interest for clients seeking to deploy collateral in third-party venues. The company maintains that its incentive is token adoption, without directing activity toward any specific destination.
The underlying BTC of each cirBTC will be held in custody at a regulated Circle entity, segregated from the firm’s corporate assets. Reserve verification will always be available through Chainlink Proof of Reserve, offering transparency across multiple addresses directly on the Bitcoin blockchain.
Circle also integrated cirBTC into its existing infrastructure: Mint will manage institutional issuance and redemption flows, while USDC will operate as a dollar asset within the same compatible DeFi markets. The company has already confirmed that cirBTC is designed to integrate with Arc, its infrastructure for stablecoin finance, and projects an expansion to multiple networks beyond Ethereum in later stages.
