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USDC has now processed more than $90 trillion in cumulative on-chain transaction volume. To put that number in perspective, it’s roughly four times the annual GDP of the United States, all flowing through a single stablecoin.
Circle announced the milestone on July 7, 2026, pegging the exact figure at $90.8 trillion in lifetime volume. For a token that launched in September 2018, that trajectory from zero to nearly $91 trillion tells a story about where institutional money is actually moving in crypto.
The numbers behind the dominance
In June 2026, adjusted stablecoin transaction volume hit a record $1.79 trillion, according to Visa’s Allium analytics. USDC captured approximately $1.21 trillion of that total, good for roughly 67% of the entire adjusted stablecoin market in a single month.
Zoom out to the first half of 2026, and the picture sharpens further. USDC commanded about 70% of adjusted stablecoin transaction volumes during the period. USDT, long considered the king of stablecoins by market cap, held just 25%.
USDC’s circulating supply currently sits at approximately $73 billion, backed by reserves slightly exceeding that amount at around $73.2 billion. The token now operates across more than 34 blockchains.
How USDC flipped the script on USDT
Circle became the sole issuer of USDC after dissolving the Centre consortium with Coinbase back in 2023, giving it full control over the token’s direction and strategy.
Circle has also invested heavily in infrastructure, most notably its Cross-Chain Transfer Protocol, or CCTP. This protocol enables native USDC transfers across supported blockchains without the friction and security risks of traditional bridging.
What this means for investors
Second, the competitive pressure on USDT is real and accelerating. Tether has historically maintained its lead through sheer ubiquity and first-mover advantage, particularly in Asian markets and on centralized exchanges. But a 70-25 volume split in USDC’s favor suggests that advantage is eroding, at least in the segments of the market where compliance and transparency are table stakes.
Third, consider the liquidity implications. As USDC captures more transaction volume and integrates deeper into traditional financial plumbing, it creates denser liquidity pools on supported chains. That benefits DeFi protocols, trading venues, and any application that relies on stablecoin liquidity to function efficiently.
Circle has positioned USDC not just as a payment token but as a building block for automated, smart-contract-driven financial workflows, including round-the-clock settlements, programmable payroll, and automated treasury management.
USDC’s growing market share means the stablecoin ecosystem is becoming more concentrated around a single issuer. If Circle were to face operational, regulatory, or reserve management issues, the blast radius would be significantly larger than it was even two years ago.
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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