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USDC has crossed $100 trillion in cumulative on-chain transaction volume. For context, US GDP last year was roughly $28 trillion.
The milestone caps a year of extraordinary acceleration for Circle’s flagship stablecoin. As recently as April 2026, USDC had just cleared $80 trillion in lifetime volume. By early July, it had surpassed $90 trillion.
The numbers behind the number
Circle’s Q2 2026 results paint a vivid picture of what’s fueling this growth. The company reported $14.8 trillion in USDC on-chain volume for the quarter alone, a 151% year-over-year increase. That followed a Q1 figure of $21.5 trillion, meaning the first half of 2026 accounted for over $36 trillion in transfers.
Through August 2026, USDC settled approximately $32 trillion in adjusted transfer volume. That represented roughly 77% of total stablecoin activity across the market. USDT managed about $8 trillion over the same period.
The gap becomes even more striking when you look at velocity. USDC hit an annualized turnover of 741x, meaning each dollar of USDC supply was effectively used 741 times over the course of a year. USDT’s velocity was a comparatively modest 74x.
About 67% of USDC’s 2026 volume flowed through Base and Ethereum, driven by DeFi protocols, flash loans, and liquidity pool rebalancing operations.
Velocity versus value: what USDC’s dominance actually means
Flash loans, which let users borrow and repay funds within a single transaction block, can generate enormous nominal volume without any capital actually changing hands in the traditional sense. Liquidity pool rebalancing on decentralized exchanges works similarly, with algorithms constantly shuffling stablecoins to maintain price pegs and optimal ratios.
This is why USDC’s velocity dwarfs USDT’s. Tether’s volume is more heavily weighted toward centralized exchange trading and cross-border transfers. USDC, by contrast, has become the preferred fuel for DeFi’s automated activity.
Circle’s business model paradox
Despite facilitating record-shattering volumes, Circle barely makes money from the transactions themselves. Reserve income, essentially interest earned on the US Treasury bills and cash backing USDC’s supply, accounted for around 95% of Circle’s Q2 2026 revenue. Transaction-related earnings contributed roughly $5.3 million.
This structure provides relatively stable, predictable income that doesn’t fluctuate with transaction counts or market sentiment. But it also means Circle’s fortunes are tightly coupled to interest rates. A meaningful rate-cutting cycle would compress those margins considerably, regardless of how many trillions USDC continues to move.
Disclosure: This article was edited by Editorial Team. For more information on how we create and review content, see our Editorial Policy.
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