USDC
Updated
Summary
USDC is a U.S. dollar stablecoin issued by Circle Internet Group (NYSE: CRCL). Each token is a claim to redeem one dollar, backed by cash and a BlackRock-managed government money market fund. Circle reported $72.7 billion in circulation on 2026-10-12, on 38 blockchains. Holders earn no interest; the reserve income goes to Circle and its distribution partners. On 2026-10-14 the EBA made USDC the EU's first significant e-money token.
Key numbers
USDC in circulation: $72.7 billion (as of 2026-10-12). Source: circle.com
USDC in circulation, end Q2 2026: $73.3 billion (+19% y/y; Q1: $77.0 billion) (as of 2026-06-30). Source: s206.q4cdn.com
Circle reserve income, Q2 2026: $668 million; reserve return rate 3.5% (as of 2026-06-30). Source: s206.q4cdn.com
Circle distribution and transaction costs, Q2 2026: $410 million (as of 2026-06-30). Source: s206.q4cdn.com
Coinbase stablecoin revenue, Q2 2026: $292.1 million (as of 2026-06-30). Source: sec.gov
USDC on-chain transaction volume, Q2 2026: $14.8 trillion (Q1: $21.5 trillion) (as of 2026-06-30). Source: s206.q4cdn.com
USDC share of stablecoin market: 27% (as of 2026-06-30). Source: s206.q4cdn.com
Reserves in Circle Reserve Fund: $61.9 billion of $73.16 billion segregated (as of 2026-06-30). Source: sec.gov
Circle Reserve Fund (USDXX) net assets / 7-day yield: $62.5 billion / 3.84% (as of 2026-09-30). Source: blackrock.com
Blockchains with native USDC: 38 (as of 2026-09-16). Source: circle.com
E-money tokens notified under MiCA: 45 (USDC the first significant) (as of 2026-10-14). Source: eba.europa.eu
Timeline
2026-10-14 — EBA classifies USDC as the EU's first significant e-money token. (Source: eba.europa.eu)
2026-09-17 — Circle agrees a five-year USDC incentive arrangement with Binance and sells it $100 million of shares. (Source: sec.gov)
2026-09-16 — Arc mainnet launches with network fees paid in USDC. (Source: circle.com)
2026-08-17 — Treasury proposes a GENIUS rule defining U.S. issuance and offering. (Source: home.treasury.gov)
2026-08-05 — Circle reports Q2 2026: USDC $73.3 billion, reserve income $668 million, reserve return rate 3.5%. (Source: s206.q4cdn.com)
2026-07-27 — NYDFS approves Circle's New York limited purpose trust company (announced 2026-07-31). (Source: dfs.ny.gov)
2026-07-10 — Circle receives final OCC approval for Circle National Trust. (Source: circle.com)
2026-06-02 — NYDFS and the EBA announce a stablecoin supervisory MoU. (Source: dfs.ny.gov)
2026-05-11 — Circle reports Q1 2026: USDC $77.0 billion, $21.5 trillion on-chain volume. (Source: circle.com)
2026-04-01 — Treasury proposes its first GENIUS Act rule, on state-level regimes. (Source: home.treasury.gov)
2026-02-25 — Circle reports Q4 2025: USDC $75.3 billion, up 72% year over year. (Source: circle.com)
2025-12-12 — OCC conditionally approves Circle's national trust bank, First National Digital Currency Bank. (Source: occ.gov)
2025-09-18 — Treasury issues an advance notice of proposed rulemaking on the GENIUS Act. (Source: home.treasury.gov)
2025-07-18 — The GENIUS Act is signed into law. (Source: whitehouse.gov)
2025-06-05 — Circle shares begin trading on the NYSE as CRCL after a $31 IPO. (Source: circle.com)
Key actors and links
Stablecoins (theme:stablecoins): USDC is the second-largest dollar stablecoin; Circle put its share of the stablecoin market at 27% at the end of Q2 2026.
Stablecoin settlement volumes (indicator:stablecoin-supply): USDC circulation ($72.7 billion on 2026-10-12) and on-chain volume are core inputs to stablecoin supply and settlement tracking.
European Union (actor:european-union): Under MiCA the EBA will supervise the EU issuer's reserves from 2026-11-12.
France (country:france): The EU issuer, Circle Internet Financial Europe SAS, is supervised by France's ACPR, which keeps governance and fit-and-proper oversight after the EBA handover.
U.S. Treasury (actor:us-treasury): Treasury is writing GENIUS Act rules; its 2026-08-17 proposal expects licensing to bind from 2027-01-18.
U.S. Treasuries (market:us-treasuries): Most reserves sit in a fund holding Treasury debt and repo.
Fed funds / policy rate (indicator:fed-funds-rate): Reserve income tracks short rates: Circle's reserve return rate fell 66 bp to 3.5% in Q2 2026. Inference (AA): lower rates cut Circle's income, not holders' par value.
SEC (actor:sec): Circle files with the SEC as CRCL; GENIUS, once effective, excludes payment stablecoins from the definition of a security.
Ethereum network (actor:ethereum-network): One of the 38 blockchains with native USDC; this adoption does not change USDC's par claim.
Solana network (actor:solana-network): One of the 38 blockchains with native USDC; chain usage drives volume, not holder returns.
RLUSD (asset:crypto-rlusd): Ripple's RLUSD is a competing regulated dollar stablecoin; its reserve income also accrues to the issuer, not holders.
Why it matters now
Regulation is now the main driver. In the U.S., the GENIUS Act became law on 2025-07-18. Treasury expects its licensing rules to bind from 2027-01-18. Circle won final OCC approval for a national trust bank on 2026-07-10 and a New York trust charter in late July; reserve management by the trust bank is, per Circle, a future capability. In the EU, the EBA will supervise the EU issuer's reserves, capital and liquidity from 2026-11-12, while France's ACPR keeps governance.
The business mechanism runs through rates and distribution. Reserves earn short-term rates: 3.5% in Q2 2026, down 66 bp. Circle pays most of that income to distributors such as Coinbase and, since September, Binance. Growth has stalled: circulation fell from $77.0 billion at the end of Q1 to $73.3 billion at the end of Q2, and market share was 27%. Inference (AA): more regulation can widen USDC's reach while squeezing what each dollar earns. Whether EU rules will force more reserves into bank deposits is UNKNOWN in this pass.
Risks and open questions
Bull case: USDC is becoming a regulated dollar rail on both sides of the Atlantic. Circle now holds a federal trust charter and a New York trust charter. It is the EU's first significant e-money token and will become the first such token under direct EBA supervision once the handover from France's ACPR takes effect on 2026-11-12. GENIUS licensing should squeeze out unlicensed issuers from 2027-01-18. Distribution is widening through Binance and Arc. For holders, the case is safety: a 1:1 claim backed mostly by a government money market fund with a 17-day maturity.
Bear case: Circulation fell from $77.0 billion (end Q1) to $72.7 billion on 2026-10-12, and Q2 on-chain volume fell by about a third. Most reserve income goes to distributors: $410 million of costs against $668 million of reserve income in Q2. Retail holders cannot redeem directly through Circle Mint, Circle's institutional channel, though Circle's 10-Q carves out an exception for holders subject to specific regulatory requirements such as those in the EU. AA's prior reporting raised EBA/ESRB concern about multi-issuance risk and stricter deposit rules, but the underlying ESRB recommendation was not independently re-verified in this pass.
Falsifiers: - Bull weakens if USDC circulation keeps falling after GENIUS licensing takes effect on the expected 2027-01-18 date. - Bull weakens if the EBA restricts transfers between the U.S. and EU issuers. - Bear weakens if circulation returns above the Q1 2026 level of $77.0 billion and market share rises. - Bear weakens if Circle discloses EU-issued reserves that already meet significant-EMT requirements. - Any monthly attestation showing reserves below circulation would break the core par claim.
Value accrual gate: A USDC holder gets one thing: a claim to redeem 1:1 for dollars, directly only via Circle Mint for institutions (Circle's 10-Q carves out an exception for holders subject to specific regulatory requirements such as EU holders). Holders get no interest; the Senate-passed GENIUS Act text's section 4(a)(11) bars issuers from paying yield for holding, a provision not independently confirmed against the final enacted text. Reserve income ($668 million in Q2 2026) goes to Circle, which pays most of it to distributors such as Coinbase ($292.1 million stablecoin revenue in Q2) and Binance. USDC growth therefore accrues to CRCL shareholders and distributors, not holders. Chain adoption of USDC does not by itself accrue to ETH, SOL or ARC holders.
What to watch
Circle Q3 2026 results: circulation, reserve return rate and distribution costs. (2026-11-04); Source: circle.com
EBA takes over supervision of the EU issuer's own funds, reserves and liquidity. (2026-11-12); Source: eba.europa.eu
Comment deadline on Treasury's GENIUS section 3 proposal (60 days after Federal Register publication; date not stated on the release). (2026-10 to 2026-11); Source: home.treasury.gov
Expected GENIUS Act effective date: unlicensed U.S. issuance generally barred. (2027-01-18); Source: home.treasury.gov
Service providers may generally not offer stablecoins from unlicensed issuers. (2028-07-18); Source: home.treasury.gov
Circle National Trust begins managing the USDC Reserve. (no scheduled date); Source: circle.com
EBA annual reassessment of USDC's significant status. (no scheduled date); Source: eba.europa.eu
Arc's planned exploration of a move to proof of stake. (2027); Source: circle.com
AA expects an EU or ESRB follow-up on multi-issuer stablecoins (U.S. and EU USDC) before or soon after end-2026. (2026-11 to 2027-06); speculative, no scheduled source
AA inference
Inference (AA): USDC is ELSI's clearest case of a regulated dollar rail where usage and holder value are separate. Rates feed reserve income, which goes to Circle and its distributors; holders get only par. The node therefore links Fed policy and Treasury bill demand to stablecoin supply, and links EU and U.S. regulation to who can distribute dollars on-chain. AA reads the EBA decision and GENIUS licensing as tests of whether one token can run under two supervisors. The thesis weakens if circulation recovers strongly while EU rules leave the U.S. and EU issuers fully fungible.
Sources
Circle's USDC page reported $72.7 billion of USDC in circulation as of 2026-10-12, and says USDC is redeemable 1:1 for U.S. dollars. (Source: circle.com, accessed 2026-10-16)
USDC is natively supported on 38 blockchain networks as of 2026-09-16, per Circle; the majority of reserves sit in the Circle Reserve Fund (USDXX), managed by BlackRock and custodied at BNY Mellon. (Source: circle.com, accessed 2026-10-16)
Circle Mint, the direct redemption channel, is for institutions; individuals and small businesses cannot use it, per Circle. (Source: circle.com, accessed 2026-10-16)
At the end of Q2 2026 USDC in circulation was $73.3 billion (up 19% year over year); average circulation was $76.5 billion; Q2 on-chain volume was $14.8 trillion; USDC's stablecoin market share was 27%. (Source: s206.q4cdn.com, accessed 2026-10-16)
Circle's Q2 2026 total revenue and reserve income was $701 million, of which reserve income was $668 million; the reserve return rate was 3.5%, down 66 basis points; distribution and transaction costs were $410 million; net income from continuing operations was $48 million. (Source: s206.q4cdn.com, accessed 2026-10-16)
Circle's Q2 2026 release reported OCC final approval for Circle National Trust and NYDFS approval for Circle New York Trust, and said the GENIUS Act, once effective, excludes payment stablecoins such as USDC from the definition of a security. (Source: s206.q4cdn.com, accessed 2026-10-16)
At the end of Q1 2026 USDC in circulation was $77.0 billion (up 28% year over year) and Q1 on-chain volume was $21.5 trillion; Circle reported an ARC token presale of $222 million. (Source: circle.com, accessed 2026-10-16)
At the end of Q4 2025 USDC in circulation was $75.3 billion, up 72% year over year; full-year 2025 revenue and reserve income was $2.7 billion. (Source: circle.com, accessed 2026-10-16)
Circle's Q2 2026 10-Q shows $73.16 billion of cash and cash equivalents segregated for stablecoin holders at 2026-06-30, of which $61.9 billion was in the Circle Reserve Fund; Circle says it holds only bare legal title in the reserve accounts. (Source: sec.gov, accessed 2026-10-16)
Circle's 10-Q says it redeems stablecoins one-for-one only for Circle Mint customers, except for holders subject to specific regulatory requirements such as those in the European Union. (Source: sec.gov, accessed 2026-10-16)
Circle's 2025 10-K says payments to Coinbase are calculated from net reserve income and that Coinbase receives half of the remaining income from stablecoins in the broader ecosystem; the agreement auto-renews for three-year terms. (Source: sec.gov, accessed 2026-10-16)
The Circle-Coinbase Collaboration Agreement took effect on 2023-08-18 with an initial three-year term; Coinbase as reseller is entitled to 50% of the residual payment base. (Source: sec.gov, accessed 2026-10-16)
Coinbase reported stablecoin revenue of $292.1 million for Q2 2026, versus $308.9 million in Q2 2025. (Source: sec.gov, accessed 2026-10-16)
On 2026-09-17 Circle agreed a five-year arrangement paying Binance a monthly incentive fee based on USDC held via Circle's wallet service, and sold Binance $100 million of Class A shares at $80.84 each. (Source: sec.gov, accessed 2026-10-16)
The BlackRock Circle Reserve Fund (USDXX) had total net assets of $62,467 million at 2026-09-30, a 7-day SEC yield of 3.84% and a weighted average maturity of 17 days, holding U.S. Treasury repo and Treasury debt. (Source: blackrock.com, accessed 2026-10-16)
On 2026-10-14 the EBA classified USDC, issued in the EU by Circle Internet Financial Europe SAS, as the first significant e-money token among 45 notified under MiCA; from 2026-11-12 the EBA supervises own funds, reserves, liquidity and recovery and redemption plans, while France's ACPR keeps governance and other areas. The EBA reassesses significance annually. (Source: eba.europa.eu, accessed 2026-10-16)
NYDFS announced on 2026-06-02 that it signed a memorandum of understanding with the EBA to exchange supervisory information on stablecoin activities. (Source: dfs.ny.gov, accessed 2026-10-16)
On 2025-12-12 Circle announced conditional OCC approval for First National Digital Currency Bank, N.A., intended to oversee management of the USDC Reserve for Circle's U.S. issuer. (Source: circle.com, accessed 2026-10-16)
The OCC conditionally approved five national trust bank charters on 2025-12-12, including First National Digital Currency Bank and Ripple National Trust Bank. (Source: occ.gov, accessed 2026-10-16)
On 2026-07-10 Circle announced final OCC approval for First National Digital Currency Bank, N.A. (Circle National Trust); USDC reserve management is planned as a future capability, and at opening the bank provides digital asset custody. (Source: circle.com, accessed 2026-10-16)
On 2026-07-31 Circle announced a NYDFS limited purpose trust charter for Circle Internet Trust Company LLC (Circle New York Trust); the release does not describe its activities. (Source: circle.com, accessed 2026-10-16)
The NYDFS weekly bulletin records approval on 2026-07-27 for Circle Internet Trust Company, LLC to conduct business as a limited purpose trust company. (Source: dfs.ny.gov, accessed 2026-10-16)
The President signed S.1582, the GENIUS Act, into law on 2025-07-18. (Source: whitehouse.gov, accessed 2026-10-16)
The Senate-passed GENIUS Act text requires 1:1 identifiable reserves, such as cash and Treasury bills with 93 days or less to maturity (section 4(a)(1)), bars issuers from paying holders interest or yield solely for holding a payment stablecoin (section 4(a)(11)), and lets issuers with up to $10 billion outstanding opt for state regulation (section 4(c)). (Source: govinfo.gov, accessed 2026-10-16)
Treasury issued an advance notice of proposed rulemaking on GENIUS Act implementation on 2025-09-18. (Source: home.treasury.gov, accessed 2026-10-16)
Treasury proposed its first GENIUS Act rule, on state-level regimes, on 2026-04-01. (Source: home.treasury.gov, accessed 2026-10-16)
On 2026-08-17 Treasury proposed a rule defining U.S. issuance and offering of payment stablecoins; it says that from the expected effective date of 2027-01-18 issuing without a license is generally barred, and from 2028-07-18 service providers may generally not offer stablecoins from unlicensed issuers. (Source: home.treasury.gov, accessed 2026-10-16)
Circle priced its IPO at $31 per share on 2025-06-04, with trading on the NYSE as CRCL expected from 2025-06-05. (Source: circle.com, accessed 2026-10-16)
Arc's public mainnet launched on 2026-09-16 with fees paid in USDC; Circle minted 10 billion ARC tokens and is exploring a move to proof of stake in 2027. (Source: circle.com, accessed 2026-10-16)
Circle will release Q3 2026 results on 2026-11-04. (Source: circle.com, accessed 2026-10-16)
MiCA is Regulation (EU) 2023/1114 of 2023-05-31, published 2023-06-09. (Source: eur-lex.europa.eu, accessed 2026-10-16)