Circle Internet Group (NYSE: CRCL) closed Friday at $102.05, marking a 61% surge since its second-quarter earnings release on August 5. The rally reflects growing optimism around the company's stablecoin USDC, but a closer look at the numbers reveals that the recent supply growth may not be enough to counterbalance the potential impact of interest rate cuts on its revenue model.
According to Circle's own weekly disclosure, USDC circulation stood at $74.33 billion as of September 3. Over the past seven days, the company issued $11.02 billion and redeemed $10.41 billion, resulting in a net increase of approximately $610 million. While this growth is positive, it pales in comparison to the potential revenue loss from a significant rate cut. Reserve income accounted for 95% of Circle's second-quarter revenue, making interest rates a critical driver of its financial performance.
The stock's rally has been dramatic: from a close of $63.28 on August 5, shares climbed to $88.64 by September 2, then $103.23 on September 3, before settling at $102.05 on September 4. Independent blockchain data suggests the current supply is even higher, around $74.71 billion as of Sunday, after weekend flows.
To understand the challenge, consider Circle's interest-rate sensitivity model. A 100-basis-point decline from June's average yield of 3.49% would reduce annual reserve income by an estimated $737 million. However, lower distribution and transaction costs would recover about $360 million, leaving a net hit of roughly $377 million before operating expenses and taxes. This scenario assumes flat supply, but even with the recent growth, the numbers are stark.
The latest $610 million net mint would generate only about $21 million annually at a 3.5% reserve return. That equals less than 3% of the modeled gross loss from a one-point rate decline. Circle itself cautions against mechanical forecasts, noting that "the relationship between interest rates and USDC in circulation is complex, highly uncertain, and unproven." A rate cut could also make holding a non-yielding digital dollar relatively less costly, potentially boosting demand.
Second-quarter results highlight the importance of both variables. Reserve income was $667.7 million, while total revenue and reserve income reached $701.3 million. Distribution, transaction, and other costs consumed $412.5 million, leaving revenue less those costs at $288.8 million. Adjusted EBITDA came in at $143 million, with net income from continuing operations of $48 million.
The Street remains divided on Circle's prospects. Morgan Stanley's James Faucette downgraded the stock to Underweight with a $38 target in August, citing reserve-income sensitivity and competition. In contrast, Bernstein's Gautam Chhugani maintained an Outperform rating with a $140 target, arguing that USDC has entered a new growth cycle. Susquehanna sits in between with a Neutral rating and a $92 target. Published targets span from $38 to $140, reflecting the uncertainty.
Looking ahead, Circle's planned launch of Arc on September 16 offers a potential second growth avenue. Arc is designed for stablecoin payments, foreign exchange, and capital markets, but transaction-led products currently represent only a small fraction of revenue. Execution risks are significant: USDC supply can reverse quickly, competitors may offer better distribution terms, regulatory changes could alter product economics, and Arc adoption may take longer than anticipated.
For investors, the key checkpoints are clear: weekly net issuance must remain positive, and Arc must begin generating revenue that does not depend on Treasury yields. One strong minting week is evidence of momentum, but it is not the whole answer.
