CryptoSlate
Coin Metrics logged $32 trillion in adjusted USDC transfer volume through August 2026, implying an annualized velocity of 741x. That reach, however, has yet to translate into fee revenue at Circle. In the second quarter, reserve income supplied $667.7 million of Circle's $701.3 million in total revenue and reserve income, or 95.2%, while transaction revenue came in at just $5.3 million. The gap between gross volume and the income statement is now the defining feature of Circle's economics.
Why it matters
Coin Metrics' bottom-up decomposition shows why headline transfer volume is not a payments metric. On Base, 69% of USDC volume came through decentralized-exchange liquidity provisioning and 23% through flash loans. On Ethereum, flash loans accounted for 65%. Liquidity rebalancing, collateral movement and arbitrage can each move the same dollar dozens of times without generating net settlement or fees for the issuer. About 8% of Base volume and 33% of Ethereum volume fell outside Coin Metrics' tagged categories, leaving a residual that cannot be relabeled as commercial payments.
The revenue bridge in Circle's Q2 filing underscores the same point. The company attributed $147.4 million of year-over-year reserve-income improvement to a 25.2% rise in average daily USDC circulation, while a 66-basis-point drop in average yields offset $113.9 million of that gain. More outstanding USDC expands the reserve base that earns interest; the same dollars moving hundreds of times does not by itself create hundreds of revenue events.
Market impact
Arc, Circle's own blockchain infrastructure, is the clearest attempt to convert some of that activity into retained economics. Arc was in private mainnet as of Aug. 5 with more than 100 builders, and a public mainnet launch is scheduled for Sept. 16. Its gas and fee system denominates transaction fees in USDC, giving Circle a more visible fee surface than ordinary cross-chain USDC transfers. The post-launch scorecard is straightforward: whether activity appears in transaction and service revenue rather than only in network statistics, and whether applications generate sustained activity outside mechanical liquidity loops.
The $242.2 million ARC token presale, covering 807.5 million tokens, sits in the filing as deferred revenue, not recognized quarterly revenue, and is tied to a possible later transition from proof of authority to proof of stake.
Frequently asked questions
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Why does most of USDC's transfer volume not turn into fee revenue for Circle?
Coin Metrics' decomposition shows the bulk is mechanical activity: 69% of Base USDC volume was DEX liquidity provisioning and 23% was flash loans, while 65% of Ethereum volume was flash loans. None of those categories generate recurring fees for the issuer.
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What share of Circle's Q2 revenue came from reserve income vs transactions?
Reserve income supplied $667.7 million of Circle's $701.3 million in total revenue and reserve income, or 95.2%. Transaction revenue was only $5.3 million for the quarter.
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How sensitive is Circle's earnings to interest rate moves?
Holding circulation and reserve allocation constant, Circle modelled a 100-basis-point move from June's average yield as changing reserve income by about $737 million and distribution costs by about $360 million over the following 12 months.
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What is Arc and when does it go live?
Arc is Circle's own blockchain infrastructure, with public mainnet scheduled for Sept. 16. It denominates gas and transaction fees in USDC, giving Circle a more visible fee surface than ordinary cross-chain USDC transfers.
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Is the ARC token presale already part of Circle's quarterly revenue?
No. The $242.2 million presale of 807.5 million tokens is recorded in the Q2 filing as deferred revenue, not recognized quarterly revenue, and is tied to a possible later transition from proof of authority to proof of stake.
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