Adjusted stablecoin transaction volume hit a record $1.79 trillion in June 2026, according to Visa's onchain analytics dashboard. Circle's USDC accounted for 67% of that figure — roughly $1.21 trillion — while Tether's USDT processed $573 billion. The gap has widened steadily: in 2020, USDT comma...
"These are the highest volumes that stablecoins have seen in history." — Zach Pandl, Head of Research, Grayscale
Adjusted stablecoin transaction volume hit a record $1.79 trillion in June 2026, according to Visa's onchain analytics dashboard. Circle's USDC accounted for 67% of that figure — roughly $1.21 trillion — while Tether's USDT processed $573 billion. The gap has widened steadily: in 2020, USDT commanded approximately 90% of adjusted transaction volume. By H1 2026, that share had fallen to roughly 25%.
The inversion is structural, not cyclical. Three concurrent forces are reshaping the stablecoin market: MiCA's July 1 enforcement locked USDT out of EU-regulated exchanges; two G-SIBs — Standard Chartered and BNY Mellon — embedded direct USDC minting into institutional banking rails; and Coinbase's Base L2 emerged as the single largest stablecoin settlement network by volume, processing $565 billion in June alone. USDT retains a 2.5x market-cap advantage ($184 billion vs. $73 billion), but it is losing ground where it matters most: velocity of regulated, institutional-grade flow.
Visa's onchain analytics dashboard, built in collaboration with Allium, Artemis, and Castle Island Ventures, recorded $1.79 trillion in adjusted stablecoin transaction volume in June 2026. That figure was up 63% from $1.1 trillion in May and 125% from approximately $795 billion in June 2025.
First-half 2026 cumulative volume reached $8.82 trillion. For context, full-year 2024 stablecoin volume was $5.8 trillion; full-year 2025 was $10.8 trillion. At current run rate, 2026 is on pace to exceed $17 trillion, a 57% increase over 2025.
The breakdown by issuer:
| Issuer | June 2026 Volume | Share of Total | Transactions | |--------|-----------------|----------------|--------------| | USDC (Circle) | $1.21 trillion | 67% | 57 million | | USDT (Tether) | $573 billion | ~32% | 145 million | | Other | ~$7 billion | ~1% | — |
A notable divergence: USDT processed 2.5x more transactions than USDC (145 million vs. 57 million), but USDC moved 2.1x more value. This implies materially higher average transaction sizes for USDC — consistent with institutional and treasury-management use cases rather than retail payments.
The stablecoin market's total capitalization stood at approximately $290 billion as of early July 2026. USDT held $184.1 billion (63.4% share); USDC held $73.0 billion (25.1%). The top two issuers together controlled 88.5% of total stablecoin supply.
The divergence between market cap and volume tells a story about capital velocity. USDC turned over its entire supply roughly 16.6 times in June ($1.21 trillion on a $73 billion base). USDT turned over approximately 3.1 times ($573 billion on $184 billion). USDC's velocity is more than 5x that of USDT.
This disparity suggests fundamentally different user bases. A large portion of USDT supply appears to sit in passive holdings — used as a dollar-denominated store of value, particularly in emerging markets and on centralized exchanges. USDC supply, by contrast, is actively cycling through settlement, treasury operations, and DeFi protocols.
From an economic-value perspective, velocity matters more than supply. A stablecoin that moves faster generates more fee revenue for networks, more settlement throughput for institutions, and more utility per dollar of capitalization. USDC's velocity advantage represents a structural economic moat that market cap alone does not capture.
The EU's Markets in Crypto-Assets regulation reached its final enforcement deadline on July 1, 2026. Tether chose not to apply for the e-money-token (EMT) authorization that MiCA requires, publicly questioning the framework's reserve-composition and bank-deposit requirements.
The consequence was immediate. MiCA-licensed exchanges — including Coinbase, Kraken, Revolut, and Crypto.com — removed USDT trading pairs for European users. USDT is not banned for individuals to hold, but it cannot be offered or listed by any MiCA-licensed venue to EU-based users.
Circle took the opposite approach, securing an Electronic Money Institution (EMI) license in France that can be passported across all 27 EU member states and 30 European Economic Area countries. Both USDC and EURC (Circle's euro-denominated stablecoin) operate under MiCA.
The immediate volume impact of the EU delisting is difficult to isolate — European trading volumes represent a relatively small share of global stablecoin flow. The longer-term effect is regulatory path dependency: as more jurisdictions adopt MiCA-style frameworks, Tether's decision not to seek authorization in the EU becomes a template for potential exclusion elsewhere.
Two developments in the first week of July 2026 marked a structural shift in how USDC reaches institutional capital:
Standard Chartered announced on July 2 that it had become the first Global Systemically Important Bank (G-SIB) to offer institutional clients direct USDC minting and redemption. The service, initially available through Standard Chartered's DIFC (Dubai International Financial Centre) operations, allows institutional clients to access USDC without holding direct accounts with Circle.
BNY Mellon, the world's largest custody bank with $59 trillion in assets under management, expanded its USDC support to include custody, minting, and redemption days earlier.
The significance is distribution architecture. Prior to these arrangements, institutional access to USDC required a direct relationship with Circle. Now, the stablecoin is available through existing banking relationships — the same counterparty risk framework and compliance infrastructure that institutions already use for traditional assets.
Tether operates a different distribution model. Its minting and redemption happens through authorized participants, but none of these are G-SIBs. The distinction matters for institutional treasurers who face counterparty-approval requirements from compliance and risk committees: a G-SIB intermediary clears internal hurdles that a crypto-native issuer does not.
The chain-level breakdown of June 2026 stablecoin volume revealed a significant shift:
| Network | June 2026 Volume | Share | |---------|-----------------|-------| | Base (Coinbase L2) | $565 billion | 31.5% | | Ethereum | $562 billion | 31.4% | | Tron | $320 billion | 17.9% | | Others | ~$343 billion | 19.2% |
Base edging out Ethereum as the largest stablecoin settlement layer — even by a narrow margin — is a notable milestone. Base is Coinbase's proprietary Ethereum L2, which means USDC volume on Base feeds directly into Coinbase's ecosystem. The alignment between Circle (USDC issuer), Coinbase (Circle's original co-founder of the CENTRE Consortium and operator of Base), and institutional banking partners creates a vertically integrated stablecoin stack.
Tron's $320 billion in volume reflects its continued dominance in peer-to-peer USDT transfers, particularly in Southeast Asia, the Middle East, and Africa. This is primarily USDT-denominated retail flow — high transaction count, lower average value.
USDC's total supply distribution across chains as of mid-2026: Ethereum holds $32–34 billion (approximately 45% of supply), Solana holds $7–8 billion, Base holds approximately $5 billion, and Arbitrum approximately $4 billion. USDC is natively supported on 34 blockchain networks.
Circle Internet Group (NYSE: CRCL) reported Q1 2026 revenue of $694.1 million, up 20% year-over-year. Adjusted EBITDA reached $151 million, up 24%. Net income was $55.3 million, down 15% from Q1 2025.
Key operating metrics: USDC in circulation at quarter end was $77.0 billion, up 28% year-over-year. USDC onchain transaction volume in Q1 2026 was $21.5 trillion, up 263% year-over-year. Management affirmed multi-year guidance for 40% CAGR in USDC circulation.
The company also closed a $222 million presale of its ARC Token at a $3 billion fully diluted network valuation, with investors including a16z crypto, Apollo, ARK Invest, and BlackRock.
CRCL shares traded at approximately $64.90 in early July 2026, with a market capitalization of $16.1 billion. The stock is down sharply from its 52-week high of $262.97. ARK Invest purchased $17.8 million in Circle shares on July 2. Jefferies issued a cautionary note on the same day. The 26-analyst consensus target is $137.12, implying 112% upside from current levels.
All volume figures cited in this report use Visa's adjusted methodology, which applies two filters to raw onchain data:
Single-directional filter: Only the largest stablecoin transfer within a single transaction is counted, removing redundant internal transactions within complex smart contract interactions.
Address filter: Addresses are excluded if they have sent more than 1,000 transactions or $10 million in transfer volume in any given 30-day period. This removes high-frequency trading bots, arbitrage bots, and automated smart contract interactions.
The methodology was developed collaboratively by Visa, Artemis, Allium, and Castle Island Ventures. Unadjusted raw volumes are substantially higher. The adjusted figures are designed to approximate genuine economic activity rather than inflated synthetic throughput.
This distinction is material. USDT's raw transaction count is 2.5x higher than USDC's, but much of that activity occurs on Tron in high-frequency, low-value transfers. The adjusted methodology disproportionately reduces USDT's volume share relative to USDC's, which may reflect genuine economic usage patterns — or may reflect methodological choices that favor institutional-sized transfers over retail ones.
The stablecoin market is undergoing a structural reconfiguration. USDT retains dominance in supply ($184 billion vs. $73 billion) and in raw transaction count, but USDC is winning the velocity and institutional-access competition. The gap will likely continue to widen as regulatory frameworks proliferate — MiCA is the first major jurisdiction to lock out non-compliant stablecoins, but it is unlikely to be the last.
The economic implications extend beyond issuer market share. Higher-velocity stablecoins generate more economic activity per unit of supply, creating more fee revenue for settlement networks, more throughput for institutional treasury operations, and more utility for DeFi protocols. If stablecoin value accrues to velocity rather than supply, the market-cap ranking may prove to be a lagging indicator.
The integration of USDC into G-SIB banking rails represents a distribution advantage that is difficult to replicate. Tether's authorized-participant model works for crypto-native counterparties but does not penetrate institutional compliance frameworks with the same ease. Whether this matters depends on which market segment drives marginal growth: if retail emerging-market demand for dollar-denominated savings dominates, USDT's model is sufficient. If institutional settlement, treasury management, and regulated-exchange trading dominate, USDC's regulatory and distribution positioning provides structural advantages.
The data through H1 2026 suggests the latter is growing faster.