Circle launched cirBTC on Ethereum mainnet on June 8, 2026, entering a wrapped Bitcoin market currently valued at approximately $15–20 billion across all products. The token is backed 1:1 by native BTC held in Circle's regulated custody and uses Chainlink Proof of Reserve for real-time on-chain v...
"We are bringing the same infra that supports USDC, EURC, and USYC to the largest digital asset, creating a neutral infrastructure for new applications for onchain BTC." — Jeremy Allaire, CEO, Circle
Circle launched cirBTC on Ethereum mainnet on June 8, 2026, entering a wrapped Bitcoin market currently valued at approximately $15–20 billion across all products. The token is backed 1:1 by native BTC held in Circle's regulated custody and uses Chainlink Proof of Reserve for real-time on-chain verification — a feature absent from the two incumbents, WBTC ($7.3 billion market cap, ~119,000 BTC) and Coinbase's cbBTC ($5.9 billion market cap).
The launch converts a two-player market into a three-way contest between fundamentally different custody and business models: BitGo's centralized multisig (WBTC), Coinbase's exchange-integrated custody (cbBTC), and Circle's issuer-neutral regulated custody (cirBTC). A decentralized alternative, Threshold Network's tBTC, holds approximately $481 million in DeFi TVL with 5,835 BTC but remains subscale against the centralized wrappers.
The timing is commercially significant. Circle and Coinbase operate under a USDC revenue-sharing agreement — under which Coinbase collects an estimated $900 million annually — that comes up for renewal in August 2026. cirBTC puts Circle in direct competition with its largest distribution partner at the most sensitive possible moment.
The wrapped Bitcoin market represents less than 2% of Bitcoin's total market capitalization, yet it serves as critical infrastructure connecting BTC holders to Ethereum-based DeFi. As of June 9, 2026, the market breaks down as follows:
| Product | Market Cap | BTC Held | Custody Model | Launch | |---------|-----------|----------|---------------|--------| | WBTC | ~$7.3B | ~119,000 | BitGo multisig + BiT Global JV | Jan 2019 | | cbBTC | ~$5.9B | N/A | Coinbase exchange custody | Sep 2024 | | tBTC | ~$481M | ~5,835 | Threshold Network (decentralized) | 2020 | | cirBTC | $0 (launch) | TBD | Circle regulated custody | Jun 2026 | | FBTC | Smaller | N/A | Mantle/Antalpha | 2024 |
WBTC controls roughly 85% of the wrapped BTC segment by legacy dominance, though cbBTC has grown faster than any comparable product since its September 2024 launch, reaching $5.9 billion in under two years. A cluster of exchange-backed offerings — Kraken Wrapped BTC, Binance Wrapped BTC, Bitget Wrapped BTC, and OKX Wrapped BTC — collectively hold the remaining margin.
The three major competitors employ structurally different approaches to the same problem: how to hold Bitcoin on behalf of Ethereum users.
WBTC (BitGo/BiT Global): Operates through a centralized multisig governed by BitGo. In 2024, BitGo formed a joint venture with BiT Global — a firm connected to Tron founder Justin Sun — to establish "multi-jurisdictional and multi-institutional custody." The arrangement moved keys across jurisdictions but did not fundamentally decentralize control. Verification relies on periodic attestations and custodian claims.
cbBTC (Coinbase): Bitcoin is held in Coinbase's institutional-grade custody. Minting and redemption are integrated with the Coinbase exchange. Eligible Coinbase customers face no explicit wrap or redeem fees; the economics are recovered through Coinbase's broader exchange spread and custody business. No independent on-chain proof of reserves exists — users trust Coinbase's audited financial statements.
cirBTC (Circle): Bitcoin is held in Circle's regulated custody. The distinguishing technical feature is Chainlink Proof of Reserve integration, which publishes verified reserve data on-chain in real time. Counterparties can check multiple wallet addresses directly on the Bitcoin blockchain without waiting for audits or off-chain attestation cycles. Circle emphasizes its neutrality: it does not operate an exchange, DEX, or lending protocol, positioning cirBTC as venue-agnostic infrastructure.
WBTC's market dominance has been under sustained pressure since mid-2024 when BitGo's partnership with BiT Global, and Justin Sun's involvement, triggered governance actions across major DeFi protocols.
MakerDAO's risk management team, BA Labs, proposed blocking new borrowing against WBTC collateral. BA Labs co-founder Monetsupply wrote: "On the whole, we find that Sun's involvement as a controlling interest in the new WBTC joint venture presents an unacceptable level of risk." Aave also considered limiting its WBTC exposure. BitGo CEO Mike Belshe dismissed the concerns as "a big nothingburger," characterizing the backlash as reputational rather than factual.
The legal aftermath continued into 2026. BiT Global had filed a lawsuit against Coinbase for delisting WBTC after Coinbase launched cbBTC. That suit was dropped, per reporting from The Block, but the episode crystallized a market reality: custody governance is now a competitive variable, not a background assumption. Every new wrapped Bitcoin entrant since — cbBTC, tBTC's expansion, FBTC, and now cirBTC — has defined itself partly in opposition to WBTC's custody structure.
Circle (NYSE: CRCL) posted Q1 2026 revenue of $694.13 million, up 20% year over year, with EPS of $0.21 beating consensus by 19%. The stock is up approximately 68% year-to-date in 2026. Management raised its 2026 "other revenue" guidance to $150–170 million, signaling active diversification beyond stablecoin reserve yields.
cirBTC fits this diversification strategy. Circle's pitch rests on three claims:
Regulatory credibility. As a publicly traded, regulated financial institution and the issuer of USDC (one of the two dominant dollar stablecoins), Circle can offer institutional counterparties a compliance posture that neither BitGo's JV structure nor Coinbase's exchange-embedded model can replicate for certain use cases.
Issuer neutrality. Circle does not operate a trading venue. Institutions using cirBTC face no conflict-of-interest concerns about the issuer competing for their order flow. Jeremy Allaire framed this as building "neutral infrastructure."
On-chain transparency. The Chainlink Proof of Reserve integration provides cryptographically verifiable, real-time reserve data. This eliminates reliance on monthly or quarterly attestation cycles, a structural weakness that has plagued WBTC's credibility.
cirBTC launched on Ethereum with plans to expand to Arc, Circle's proprietary Layer 1 blockchain. The multichain roadmap signals ambition beyond a single ecosystem.
The competitive viability of any wrapped Bitcoin product depends on DeFi protocol integrations. As of Q2 2026, the integration landscape across the three major lending platforms:
Aave ($27 billion TVL, ~60–62% DeFi lending market share): Lists WBTC across most deployments; lists cbBTC on Ethereum and Base; lists tBTC on selected markets. cirBTC integration status: pending governance proposals.
Sky (formerly MakerDAO) ($5.2 billion TVL): Uses WBTC as a long-standing collateral type, though governance actions have restricted new WBTC borrowing following the BiT Global controversy. cbBTC integration status is unclear. cirBTC integration status: not yet proposed.
Morpho: Accepts WBTC and cbBTC widely with custom vaults for FBTC. Additional wrapped BTC products can be integrated through permissionless vault creation.
For cirBTC, the integration gap is the immediate challenge. WBTC's incumbency advantage is not its custody model — it is six years of DeFi integrations, liquidity pools, and protocol-level permissions. cbBTC overcame this faster than expected by leveraging the Base ecosystem and Coinbase's institutional relationships. Circle will attempt a similar acceleration using its USDC integration network.
The revenue mechanics differ substantially across products:
WBTC: BitGo charges mint and burn fees to authorized merchants. The fee structure has varied but historically included a small percentage on wrapping and unwrapping operations.
cbBTC: No explicit mint or wrap fee for eligible Coinbase customers. Revenue is captured indirectly through exchange trading spreads, custody fees, and the broader Coinbase financial services ecosystem. This makes cbBTC effectively a customer acquisition and retention tool.
cirBTC: Circle has not disclosed a detailed fee schedule at launch. Based on Circle's USDC model — where revenue derives primarily from reserve interest income rather than transaction fees — cirBTC may follow a similar pattern, earning on the BTC held in custody through lending or structured products, though this remains speculative.
tBTC: Threshold Network charges minting and redemption fees that flow to network stakers. The protocol generated revenue through these operations while maintaining a decentralized custody structure with approximately 26 integrations above $1 million by end of Q1 2026.
The cirBTC launch introduces commercial tension into one of crypto's most consequential business relationships. Circle and Coinbase co-created the Centre Consortium that governs USDC. Under their current revenue-sharing agreement, Coinbase receives 100% of interest income on USDC held on its platform and a 50/50 split on off-platform USDC holdings. Analysts estimate this arrangement generates over $900 million annually for Coinbase.
That agreement is up for renewal in August 2026 — two months after cirBTC's launch.
By entering the wrapped Bitcoin market, Circle is directly competing with Coinbase's cbBTC, which has grown to $5.9 billion in market value. The products target overlapping institutional and DeFi users. Circle's argument — that cirBTC is "neutral infrastructure" unlike an exchange-issued product — implicitly positions cbBTC as conflicted.
The question is whether this competitive move affects the USDC distribution agreement negotiations. Coinbase holds significant leverage: it is the largest on-ramp for USDC adoption in the United States. Circle holds its own leverage: USDC is core infrastructure for Coinbase's stablecoin revenue. The wrapped Bitcoin market may be a secondary theater in a larger negotiation over stablecoin economics.
Threshold Network's tBTC represents the only production-grade decentralized wrapped Bitcoin option. Q1 2026 data from Threshold's benchmark report shows:
tBTC leads the decentralized wrapper set on liquidity quality, ranking first in 6 of 8 leading liquidity depth metrics. Against centralized wrappers, however, it remains an order of magnitude smaller. The protocol's value proposition — trustless custody through threshold cryptography — appeals to users who reject counterparty risk entirely, but it has not achieved the scale needed to challenge WBTC or cbBTC in absolute terms.
The arrival of Babylon's Bitcoin staking protocol, which has accumulated over $4 billion in TVL using native BTC custody with zero-knowledge proof integrations planned for Aave V4, represents an alternative approach that may bypass wrapped Bitcoin entirely for certain DeFi use cases.
The wrapped Bitcoin market is undergoing its most significant structural shift since Coinbase launched cbBTC in September 2024. Circle's entry brings a publicly traded, regulated financial institution with $694 million in quarterly revenue and existing institutional relationships into direct competition with both WBTC's legacy dominance and Coinbase's exchange-integrated model.
The competitive outcome will likely be determined not by custody model superiority alone, but by DeFi protocol integration velocity and the institutional appetite for issuer-neutral infrastructure. Circle must convert its compliance and transparency advantages into actual protocol listings and liquidity — and it must do so while navigating a commercially sensitive relationship with its largest distribution partner.
The market is not zero-sum. If BTC-in-DeFi adoption grows — as suggested by Babylon's $4 billion TVL in native Bitcoin staking — multiple wrapped products may coexist, differentiated by custody model, fee structure, and ecosystem alignment. The question is not which wrapper wins, but how large the total market becomes.