1. What is Circle?

Circle is the issuer of USDC. USDC is the second-largest stablecoin globally, with a circulating supply of approximately $77 billion, backed by equivalent U.S. dollar assets—primarily short-term U.S. Treasuries.

Circle’s revenue model is straightforward: it invests these reserves in U.S. Treasuries to capture yield spread. For FY2025, total revenue reached $2.75 billion, with 95% derived from reserve interest. Listed in June 2025, its current market cap is around $15–20 billion.

Market pricing for Circle essentially reflects “USDC circulating supply × interest rate × conservative multiple.” This implies that if you view Circle merely as an interest-taking financial firm, the current valuation is roughly fair. However, if you see it evolving into a fee-based digital dollar infrastructure network, the current price significantly underrepresents this potential value.

This article aims to answer: Is the transformation underway? What evidence exists? And what is the implied value?

2. Core Question: Is USDC Being “Held” or “Used”?

Before any financial modeling, we must first address a question more fundamental than any metric.

With $77 billion in USDC, if it's merely held by institutions to earn yield, Circle is a rate-sensitive financial entity valued at 10–15x. But if it's actively used for payments, settlements, cross-border transfers, and developer integrations, Circle is transforming into a fee-generating infrastructure network—valued at 25–30x.

Two key data points help determine the answer:

First, on-chain transaction volume for USDC is growing far faster than circulation growth. In FY2025, USDC circulation grew 72%, while on-chain volume surged 247%. This indicates each dollar of USDC is being utilized more frequently—not just larger stock, but higher velocity.

Second, USDC has surpassed USDT as the dominant settlement asset. Visa Onchain Analytics filters out roughly 85% of on-chain noise (bots, internal exchange transfers, high-frequency arbitrage). After adjustment, USDC accounts for 64% of real economic settlement volume (Mizuho, February 2026), compared to USDT’s ~28%—despite USDT having 2.4 times the circulation.

This gap itself is the strongest signal: USDC is shifting from “an asset people hold” to “a network people use.” Yet this transition isn’t complete—what it needs to solidify will be discussed later.

3. Three-Tier Revenue Structure

Circle’s revenue is structured across three layers. The market currently prices only the first layer.

Layer 1: USDC Interest Income — How Circle Makes Money Today

USDC is Circle’s origin point and currently sources 95% of its revenue. As of year-end 2025, USDC circulation stood at $75.3 billion, up 72% YoY—well ahead of Circle’s own 40% annual growth target.

The revenue logic is simple: ~80% of USDC reserves are invested in short-term U.S. Treasuries (via BlackRock-managed USDXX fund), generating yield spread.

Interest Income ≈ Average USDC Circulation × Reserve Yield Rate

In Q4 2025, the reserve yield was 3.81%, down 68 bps from the prior quarter. This exposes a core tension: circulation is expanding rapidly, but interest rates are falling—these forces are offsetting each other. If the Fed target rate drops to 3%, Circle would need USDC circulation exceeding $150 billion to maintain current income levels.

Structural issue: Coinbase captures most of the yield. Under a 2023 revenue-sharing agreement, 100% of USDC interest on Coinbase’s platform goes to Coinbase; outside the platform, Coinbase takes 50%. In FY2025, for every dollar of interest earned, Circle paid out ~60 cents to distribution partners.

Positive sign: Margins are improving. RLDC (Revenue Less Distribution Costs) margin expanded from 30.0% in Q4 2024 to 40.1% in Q4 2025. Net revenue margin sits at 1.2–1.8%, after deducting Coinbase splits and operating costs.

Layer 2: Payment & Transaction Revenue — The New Business in Growth

This is the pivotal layer determining whether Circle can escape the label of “interest-only company.”

CPN (Circle Payments Network) launched in May 2025, enabling banks, payment providers, and enterprises to conduct 7×24 cross-border settlements via USDC. As of February 2026, annualized TPV (Transaction Volume) reached $5.7 billion—a ~100x increase since launch. 55 institutions have onboarded, 74 are under review, and over 500 in pipeline. Coverage spans 14 markets including Brazil, Canada, Hong Kong, India, Mexico, Nigeria, and the U.S.

At $5.7 billion, this remains less than 0.04% of the global cross-border payment market (~$16 trillion). CPN’s value lies not in today’s scale, but in sustained growth potential. Capturing just 1% of the cross-border market would generate $160 billion in annualized transaction volume—fees could match or exceed interest income, and crucially, they’re independent of interest rate fluctuations.

CCTP (Cross-Chain Transfer Protocol) enables native cross-chain movement of USDC via “burn-and-mint.” In Q4 2025, it processed $41.3 billion—up 3.7x YoY. USDC’s cross-chain market share rose from 25% at end-2024 to 62% by January 2026, spanning 30 blockchains. CCTP V2 introduced Fast Transfer fees—a new revenue stream.

Other Revenue (non-interest income) is the most direct evidence of transformation. It jumped from $3 million per quarter in FY2025 to $37 million per quarter—comprising subscription services ($24.7 million), transaction fees ($12.2 million), and Canton Network validator rewards ($7 million). Management guidance forecasts $150–170 million for 2026.

This income is rate-insensitive and does not require sharing with Coinbase. Once it exceeds 10% of total revenue, market valuation may shift toward a different framework. Currently, it’s ~4%.

Layer 3: Settlement Platform — Long-Term Potential

Arc is Circle’s planned institutional-grade settlement blockchain, launching mainnet in 2026, with USDC as the native gas token. The testnet has already processed over 166 million transactions, with confirmation time of 0.5 seconds, and participation from over 100 institutions—including Goldman Sachs and Mastercard.

Arc’s roadmap consists of four phases:

M1 Public Testnet (completed) → M2 Real Funds On-Chain (2026) → M3 Margin/Collateral/Settlement Use Cases Live (2027–28) → M4 Embedded in Institutional SOPs (2029–30)

Arc has zero value before M2. But if it becomes the standard for institutional settlement, Circle’s value shifts from “fee collector” to “platform owner”—a necessary condition for 10x+ returns.

4. Assessing Whether the Transition Is Happening: Seven Dimensions

One metric alone is prone to misinterpretation. The key is whether multiple dimensions are improving simultaneously—when scale, activity, margins, new revenue, and user growth all point in the same direction, the transformation is underway.

5. Three Most Important Tracking Metrics

① USDC Circulating Supply (Daily)

Base for Circle’s revenue. Circulation × Reserve Yield = Interest Income. Track “quarterly average circulation,” not end-of-period snapshots. Currently ~$77 billion.

Data Sources: defillama.com/stablecoin/usd-coin (daily updates), circle.com/transparency (weekly reserve attestations)

② USDC Share in Visa-Adjusted On-Chain Volume (Weekly)

Answers the core question: Is USDC being used or held? With only 25% of supply share, yet 64% of adjusted transaction volume—each dollar of USDC performs 2–3 times more work than USDT.

Data Source: visaonchainanalytics.com → Filter by Stablecoin → Click "Show % of Total" → Read USDC line

③ Other Revenue (Non-Interest Income) (Quarterly)

The only direct indicator that Circle earns money beyond interest. Independent of interest rates, no split with Coinbase. Currently $37 million/quarter; guidance $150–170 million (2026). When it exceeds 10% of total revenue, valuation methodology may change.

Data Source: circle.com/pressroom (quarterly reports), SEC EDGAR search for Circle Internet Group

6. Near-Term Catalysts

Coinbase Revenue-Sharing Agreement Expiry (August 2026)

This is the largest single catalyst within 24 months. Currently, Circle allocates ~60% of revenue to partners. If renegotiated, and RLDC margin improves from 40% to 50–55%, it would equate to a 25–35% instant profit boost. However, Coinbase has little incentive to concede substantially—USDC distribution on Coinbase remains Circle’s biggest growth engine. Outcome uncertain, but probability favors improvement over status quo.

OCC National Trust Bank Charter

Received conditional approval in December 2025. Full approval would enable Circle to open a primary account directly at the Federal Reserve (earning IORB yields, eliminating counterparty risk), bypass commercial banks for handling $483 billion annually in USDC minting/redemption flows, and establish an insurmountable trust barrier for enterprise and government adoption of USDC. No other stablecoin issuer holds this advantage.

x402 Foundation (Launched April 2026)

Coinbase contributed the x402 payment protocol to the Linux Foundation. x402 activates HTTP 402 status code as a native internet payment layer, enabling AI agents, APIs, and applications to settle directly within HTTP interactions—defaulting to USDC.

Participants: Google, AWS, Stripe, Visa, Mastercard, Amex, Shopify, Microsoft, Cloudflare, Circle. If x402 becomes the standard for AI agent payments, every machine-to-machine microtransaction will increase USDC velocity without requiring additional supply.

Note: x402 is Coinbase-led, not Circle-led. Impact on CRCL: mildly bullish—expands USDC use cases but doesn’t alter fundamental scale.

7. Conditions for 5–10x Returns

3–5x (High Confidence) – Pure USDC Growth

At 40% CAGR through 2028, USDC reaches ~$200–300 billion. Even at 3% interest, $250B × 1.5% net spread = $3.75 billion net income. At 20x, market cap = $75 billion. From current $15–20 billion to $75 billion—about 4x. No contribution needed from CPN or Arc.

10x (Requires Multiple Conditions to Converge)

From $15–20 billion to $150–200 billion, all of the following must happen simultaneously:

1. CPN TPV breaks $10 billion within 2–3 years, with at least one major corridor entering full production
2. Coinbase revenue-sharing agreement improves, pushing RLDC margin to 50%+
3. Other Revenue exceeds 10% of total revenue, proving scalable non-interest income
4. Arc reaches at least M2 phase (real funds on-chain), beginning to enter market pricing

Currently, only #2 (margin improvement) is clearly progressing. A 10x return is a position you “earn,” not one you “gamble on.”

8. Key Risks

Interest Rates Decline Faster Than USDC Growth

Q4 2025 already showed this dynamic: 68 bps rate drop partially offset 100% circulation growth. If the Fed cuts to 2.5–3% in 2026–2027, there could be 1–2 quarters of earnings below expectations.

Tether’s Compliance Progress

USDC’s biggest differentiation is compliance. But Tether earned $1 billion in H1 2025 and is negotiating full audits with the Big Four accounting firms. If Tether achieves regulatory legitimacy in 2–3 years, USDC’s edge will be severely eroded. USDT currently holds >60% market share and $183 billion in market cap—plenty of resources.

Yield-Paying New Stablecoins & Payment Giants Like Stripe

New stablecoins like Ethena (USDe), Sky, etc., attract users by paying direct yield to holders. Circle is constrained by regulatory positioning and cannot currently pay interest directly to USDC holders.

Stripe is a founding member of x402 Foundation and also building its own stablecoin payment system. Stripe’s strategy is to integrate with all winning standards—its involvement doesn’t imply exclusive support for USDC, nor does it rule out future launches of a proprietary stablecoin or deep integration with USDT.

9. Conclusion

Circle is not a guaranteed “trillion-dollar company.” But it may be among the few fintech firms today with the structural conditions to touch that ceiling. Current pricing reflects almost exclusively USDC interest income. The market is asking: Is Circle an interest-driven financial firm—or a fee-based digital dollar infrastructure? The answer isn’t certain—but data is increasingly tilting toward the latter.

The core tracking remains threefold: Is USDC circulation growing? Is each dollar of USDC being used more frequently? Is non-interest revenue expanding? When all three improve simultaneously, the transformation is real.

Data Sources: Circle IR, SEC EDGAR, DefiLlama, Visa Onchain Analytics, Artemis Terminal, CoinDesk, Mizuho Research

Disclaimer: This article does not constitute investment advice. All data as of April 2026.