Circle issued $10.1 billion of USDC and processed $9.8 billion of redemptions over the latest seven-day reporting period, illustrating the scale of stablecoin supply moving through its mint-and-redeem infrastructure. Circle reported a net increase of roughly $0.4 billion in USDC circulation over the period, bringing outstanding supply to $74.6 billion as of September 21. Total reserves stood at approximately $74.8 billion.
The figures come from Circle’s official transparency reporting, which publishes reserve holdings alongside aggregated issuance and redemption data. The dashboard measures changes in circulating supply rather than identifying the ultimate purpose or destination of every newly issued token. Circle also reported $40.2 billion issued and $39.0 billion redeemed over 30 days, producing a published net circulation increase of $1.2 billion.
Issuance and Redemptions Show Stablecoin Turnover
USDC issuance begins when an eligible institutional Circle Mint customer delivers dollars and receives an equivalent amount of USDC. Redemption reverses that process, returning dollars while removing corresponding USDC from circulation. Gross issuance should therefore not be interpreted as equivalent new investment into crypto markets, because significant amounts can be created and redeemed repeatedly as exchanges, market makers and other institutions adjust liquidity.
That distinction becomes particularly important at the blockchain level. Circle supports native USDC across dozens of networks, allowing supply to be distributed according to market and settlement needs. Solana recently illustrated the issue when USDC circulation approached $8 billion after a sharp chain-level increase. Individual mint instructions still required additional analysis because Circle uses pre-mint structures on Solana, meaning tokens can exist at designated addresses before counting as circulating supply.
Cross-chain infrastructure creates another source of movement without necessarily expanding global supply. Circle’s CCTP can burn native USDC on one supported network and mint an equivalent amount on another. A destination-chain mint generated through cross-chain transfer therefore represents redistribution of existing USDC rather than fresh global issuance. Native integrations such as Circle’s USDC support on Aptos expand the number of networks across which that liquidity can be positioned.
Reserve Data Gives the Broader Context
Circle says USDC reserves consist of highly liquid dollar-denominated assets, with most reserve assets held through the Circle Reserve Fund managed by BlackRock and the remainder largely held as cash at major banks. The September 21 snapshot showed reserves exceeding reported circulating USDC, while monthly third-party assurance supplements Circle’s weekly reserve disclosures.
The scale of issuance and redemption also differs from transfer volume. USDC previously led monthly stablecoin settlement activity in data showing transfer volume above USDT, but transfer volume can count the same tokens repeatedly as they move between wallets. Supply, issuance, redemption and transaction volume describe different parts of stablecoin activity and should not be used interchangeably.
Circle is simultaneously expanding the infrastructure in which USDC can circulate. Its Arc Mainnet launched with USDC at the center of its payment and settlement model, adding another environment where the stablecoin functions as both a settlement asset and transaction-fee currency. That infrastructure can create additional use cases for USDC, but its existence does not establish that it caused the latest issuance figures.
The next meaningful signal is the balance between issuance and redemption in subsequent weekly reports. Persistent net issuance would demonstrate continued growth in circulating USDC, while large gross mint and burn figures alone mainly reveal the throughput of Circle’s liquidity infrastructure. For now, Circle’s September 21 disclosure shows a market with substantial two-way activity: $10.1 billion issued, $9.8 billion redeemed and a comparatively modest net increase in supply.