Circle's USDC supply grew 19%. Its interest machine looks fragile again.
USDC adoption is still moving, but Circle's quarter shows how exposed the business remains to falling reserve returns.
CryptoVibe Desk · circle · usdc · stablecoins
- →USDC circulation hit $73.3 billion as of June 30, up 19% from a year earlier.
- →Circle's revenue missed one analyst estimate because lower reserve returns limited the upside from bigger USDC supply.
- →By Circle's Q3 2026 results, payments volume needs to move above $14.7 billion annualized.
- USDC → USDC is Circle's dollar-backed stablecoin, designed to trade close to one U.S. dollar.
- Reserve income → Reserve income is the money Circle earns by holding safe assets behind USDC, usually cash and Treasuries.
- Mints and redemptions → Mints create new USDC when users bring in dollars, while redemptions remove USDC when users cash out.
USDC ended June with $73.3 billion in circulation. That was up 19% from a year earlier, based on the quarter-end figure reported by AMBCrypto. The adoption story is still real.
The earnings story is less clean. Circle reported $701 million in total revenue and reserve income, according to AMBCrypto. That missed the cited $717.5 million analyst estimate. The only number that matters is 3.5%, Circle's average reserve return for the quarter.
That return was down 0.66 percentage points from a year earlier, AMBCrypto said. Bigger USDC supply helped. Lower income on the reserves pulled the other way. If you're buying Circle as a stablecoin growth story, your bag is also a rates story.
CryptoSlate reported $87 billion of gross USDC redemptions and $83 billion of gross mints in the quarter. That means redemptions beat mints by about $4 billion, according to the report. Quarter-end circulation still rose, so this is not a run story. It is a churn story.
The money-market fund parallel helps. In the 1970s, money funds grew because users wanted better cash tools. But the business still leaned on rates. When yields moved, the model moved with them.
Circle is trying to make that less true. CryptoSlate said the company raised other revenue guidance to $310 million to $330 million. The prior range was $150 million to $170 million. The report said Circle included about $242.25 million from an ARC Token presale, but did not break out Arc revenue.
Payments are the cleaner test. AMBCrypto reported Circle Payments Network at $14.7 billion in annualized transaction volume, with 175 participating financial institutions. That is useful plumbing, not just a token story. But it is still small next to $14.8 trillion of on-chain USDC volume for the quarter.
Circle's quarter says two things at once. USDC is still growing. The reserve-income model is officially more rate-sensitive than investors want it to be. Arc and payments do not need to replace reserves next quarter. They do need to prove Circle is more than a better wrapper around Treasury income.
Circle's Arc and payments push is necessary, because USDC growth alone won't protect earnings when reserve returns fall.
By Circle's Q3 2026 results, watch whether other revenue guidance stays above $310 million and Circle Payments Network volume rises from $14.7 billion annualized.
Primary links and supporting reads used by the desk for this story.
- pressCircle Investor Relations quarterly results page
- filingCircle SEC 8-K on second ARC Token presale closing
- CryptoSlate report on Circle Q2 flows and ARC guidance
- AMBCrypto report on Circle Q2 revenue and USDC volume
- Crypto Briefing report on USDC issuance by chain
- The Defiant report on Dinari tokenized stocks and USDC dividends
Forward this.
