Stablecoins Cross $250 Billion, Reshaping the Global Payments Stack

The stablecoin market has quietly crossed a threshold that few traditional finance analysts expected to see this decade. Total supply has surpassed $250 billion in May, a figure that dwarfs the combined balance sheets of several mid-tier U.S. commercial banks and comfortably exceeds the transaction volumes processed annually by PayPal (PYPL). The stablecoin market growth story is no longer a crypto curiosity; it is a structural shift in how dollars move around the world.

What makes this milestone genuinely significant is not the number itself but what sits beneath it. Onchain settlement volumes for dollar-denominated stablecoins surpassed $27 trillion in the twelve months through April, according to Visa‘s onchain analytics dashboard, a figure that eclipses Visa’s own network volumes for the same period. That comparison alone forces a serious rethink of where payment infrastructure is heading.

The Scale Of The Stablecoin Market Growth

The $250 billion supply figure represents a more than 60% increase from the $155 billion recorded at the start of 2025, according to data aggregated by DefiLlama. To put the pace in context, it took the stablecoin market roughly four years to go from zero to $100 billion, and fewer than eighteen months to go from $100 billion to $250 billion. The acceleration is the story.

Three structural catalysts drove the expansion. First, the 2022 Terra collapse paradoxically hardened demand for fiat-backed stablecoins by destroying confidence in algorithmic alternatives. Investors who lost money on UST did not exit stablecoins; they migrated to collateralized ones. Second, persistently high U.S. interest rates through 2023 and 2024 created a massive carry opportunity: issuers holding U.S. Treasury bills against stablecoin liabilities earned yields exceeding 5%, making the business model extraordinarily profitable. Third, cross-border payment corridors in Southeast Asia, Latin America, and Sub-Saharan Africa adopted dollar stablecoins as a practical substitute for correspondent banking, compressing settlement times from days to seconds.

> Stablecoin supply grew from $155 billion to $250 billion in fewer than eighteen months, a pace that no prior phase of the market matched.

Tether remains the dominant issuer with USDT supply sitting above $145 billion as of May 31, representing roughly 58% of the total market. Circle Internet Financial’s USDC holds approximately $62 billion, giving the two incumbents a combined share near 87%. The remaining 13% is distributed across a rapidly expanding field, including Ethena‘s USDe, the Sky protocol’s USDS, PayPal’s PYUSD, and a growing cohort of institutionally issued instruments.

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Tether’s Dominance, And Its Limits

Tether’s financial position is stronger than at any prior point in its history. The company’s 2024 annual attestation, published by accounting firm BDO, reported net profits of $13 billion for the year, almost entirely from interest on the U.S. Treasury holdings backing USDT. With fewer than 150 employees, that profit-per-head figure surpasses any major financial institution on record. The business model is simple to the point of being elegant: collect dollar deposits, buy short-dated Treasuries, pay depositors nothing, and pocket the spread.

The model’s limits are equally visible. Tether operates without a U.S. banking license and is incorporated in the British Virgin Islands. Its user base is disproportionately concentrated in emerging markets where dollar access is restricted, which is a genuine social utility, but also means the company sits outside the regulatory perimeter that governs most of its competitors. As congressional legislation draws closer to a vote, that jurisdictional arbitrage is becoming a liability rather than an asset.

> Tether’s 2024 net profit of $13 billion on a sub-150 person headcount makes it one of the most profitable financial entities per employee in history, yet it operates without a U.S. banking license.

The geographical dimension of Tether’s dominance is also instructive. On-chain data from Chainalysis’s 2025 Geography of Cryptocurrency report shows that the largest stablecoin flows by volume run through wallets associated with Nigeria, Vietnam, Turkey, and Argentina. In each case, the driver is the same: local currency debasement pushing ordinary savers toward a dollar substitute they can hold on a mobile phone. That use case will not disappear regardless of what Washington legislates.

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Circle’s Institutional Bet

Circle has made a fundamentally different strategic choice. Where Tether maximizes geographic reach and regulatory distance, Circle has spent the past three years positioning USDC as the compliance-first, institutionally trusted alternative. The company filed for a U.S. initial public offering in January, seeking a valuation reported by Bloomberg at approximately $5 billion, and has aggressively pursued banking partnerships in the U.S., EU, and Japan.

The strategy is visible in USDC’s user base. Circle’s transparency page shows that a disproportionate share of USDC supply sits on Coinbase, in institutional custody, and inside regulated DeFi protocols rather than in peer-to-peer wallets in emerging markets. That concentration reflects Circle’s deliberate targeting of TradFi onramps: asset managers, payment processors, and corporate treasury functions that require a counterparty with auditable reserves and regulatory standing.

> USDC supply reached $62 billion in May, with the majority held in institutional custody or regulated DeFi protocols rather than in peer-to-peer emerging-market wallets.

The institutional bet is paying off in specific corridors. JPMorgan (JPM) has integrated USDC settlement rails for certain cross-border corporate payments. Stripe re-enabled cryptocurrency payments in 2024 with USDC as the primary settlement asset, processing more than $1 billion in USDC transactions within the first six months according to the company’s engineering blog. Shopify (SHOP) followed with a USDC checkout integration covering 150 markets. The pattern is consistent: regulated, brand-name enterprises prefer USDC because Circle’s compliance posture reduces their own legal exposure.

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The Rise Of Yield-Bearing Stablecoins

The most structurally interesting development in the stablecoin market over the past eighteen months is the emergence of yield-bearing instruments that pass Treasury returns directly to holders. This category did not meaningfully exist before 2023 and now accounts for over $18 billion in combined supply, according to DefiLlama’s stablecoin dashboard.

Ethena’s USDe is the largest non-fiat-backed example, with supply near $6 billion as of May. Rather than holding Treasuries, USDe maintains a delta-neutral position by pairing spot Ethereum (ETH) holdings with perpetual futures short positions on centralized exchanges, capturing the funding rate that perpetual longs pay shorts. When market sentiment is bullish and funding rates are positive, holders earn yields that have historically ranged between 15% and 35% annually. The model carries basis risk that the 2022 Terra collapse made notorious, but Ethena’s structure is fundamentally different: it holds real assets and its peg is maintained mechanically rather than algorithmically.

> Yield-bearing stablecoins collectively reached $18 billion in supply by May, a category that did not exist at meaningful scale before 2023.

BlackRock (BLK)‘s BUIDL fund, now ranked 40th by market cap in the broader digital asset universe, represents the institutional endpoint of the yield-bearing thesis. BUIDL is a tokenized money market fund holding short-dated Treasuries and repo agreements, with shares issued on Ethereum as a regulated security. It is not a stablecoin in the purist sense, but it competes directly for the same corporate treasury allocation that USDC targets. The distinction between a “stablecoin” and a “tokenized money market fund” is collapsing in practice, even if regulators continue to treat them differently in law.

Ondo Finance‘s USDY, which offers a tokenized Treasury yield product accessible to non-U.S. accredited investors, has grown to $800 million in supply, demonstrating that offshore demand for yield-bearing dollar instruments is substantial and largely unmet by traditional financial products.

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Cross-Border Payments, The Killer Use Case

The single most compelling argument for stablecoin permanence is the cross-border remittance and trade settlement use case. The World Bank’s 2025 migration and remittance brief estimated global remittance flows at $860 billion for 2024, with average fees running at 6.2% for traditional wire transfers and mobile money corridors. Stablecoin transfers, by contrast, typically cost between $0.01 and $2.00 regardless of transfer size, with finality in under two minutes.

The corridor-level data is striking. The U.S.-to-Mexico remittance corridor, historically dominated by Western Union and MoneyGram, has seen stablecoin-based transfer volumes grow to represent an estimated 12% of total flows as of Q4 2025, according to Chainalysis. The U.S.-to-Philippines corridor shows a similar trajectory. In Nigeria, where the naira lost more than 70% of its dollar value between 2023 and 2025, USDT has become the de facto savings and invoicing currency for a significant share of the small-business economy.

> Stablecoin-based transfers in the U.S.-to-Mexico remittance corridor reached an estimated 12% of total flows by Q4 2025, up from under 2% in 2022.

Enterprise trade finance is moving in the same direction. HSBC (HSBC) and Standard Chartered (STAN) have both piloted tokenized trade finance instruments settled in stablecoins, reducing letter-of-credit processing from five to seven business days to under twenty-four hours. The Society for Worldwide Interbank Financial Telecommunication, better known as SWIFT, published a report in March acknowledging that tokenized asset settlement, including stablecoin rails, will become a permanent part of correspondent banking infrastructure by 2028.

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The U.S. Legislative Race

The most consequential near-term variable for stablecoin market structure is U.S. legislation. Two bills have reached advanced stages in Congress as of May 31. The GENIUS Act, which passed the Senate Banking Committee in March with bipartisan support, would create a federal licensing framework for “payment stablecoin issuers” and require full backing by U.S. dollars, short-dated Treasuries, or central bank reserves. The STABLE Act, favored by some House Republicans, takes a similar approach but routes oversight through state banking regulators rather than the Office of the Comptroller of the Currency.

The practical effect of either bill passing would be to bifurcate the stablecoin market into licensed “payment stablecoins” eligible for use in federally regulated financial institutions, and everything else. Tether, unless it establishes a U.S.-licensed entity, would fall into the second category. Circle, which has been actively lobbying for the GENIUS Act, would benefit enormously from a framework that effectively mandates the compliance posture it has already built.

> The GENIUS Act, if passed, would create a federal licensing framework for stablecoin issuers that effectively makes Circle’s existing compliance infrastructure a competitive moat.

The legislative timeline is tight. Senate floor time is limited before the summer recess, and Republican leadership has said a vote could come in June. Industry lobby group the Blockchain Association has urged members to support the GENIUS Act framework, while consumer advocacy groups including the National Consumer Law Center submitted a comment letter warning that inadequate reserve auditing requirements could leave retail users exposed. The outcome will shape the competitive landscape for at least the next five years.

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Europe’s MiCA Framework In Practice

While Washington debates, Europe is already operating under the Markets in Crypto-Assets regulation, or MiCA, which came into full force in December 2024. For stablecoins, MiCA creates two categories: “e-money tokens,” which are fiat-backed stablecoins pegged to a single currency, and “asset-referenced tokens,” which are backed by baskets of assets. Both require a license from an EU national regulator and impose strict reserve, redemption, and disclosure requirements.

The early data from MiCA implementation is instructive. Circle received an e-money token license from the French regulator Autorité des Marchés Financiers in July 2024 and has reported that USDC volumes denominated in euros increased 34% in the six months following authorization. Tether, which did not seek MiCA authorization, saw its USDT volumes on EU-regulated exchanges decline after several platforms delisted the token to avoid regulatory risk.

> USDC euro-denominated volumes grew 34% in the six months following Circle’s MiCA authorization in France, while Tether volumes on EU-regulated venues declined.

The MiCA experience offers the clearest available evidence for what U.S. legislation might produce. Compliant issuers gain access to regulated distribution channels. Non-compliant issuers do not disappear; they migrate to unregulated venues and informal peer-to-peer markets. The aggregate effect is a split market that persists for years rather than the clean transition regulators prefer. That is almost certainly the trajectory for the U.S. market post-legislation, regardless of which bill passes.

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The Dollar Dominance Question

A frequently underappreciated dimension of the stablecoin story is its relationship to U.S. dollar hegemony. More than 99% of stablecoin supply is denominated in dollars, a figure that the Atlantic Council‘s dollar dominance monitor tracks as a meaningful indicator of reserve currency dynamics. For countries seeking to reduce dollar exposure, that figure is a source of concern. For the U.S. Treasury, it is an extension of dollar reach into payment channels that traditional correspondent banking never penetrated.

Federal Reserve Governor Christopher Waller said in December 2024 that well-regulated stablecoins could “reinforce dollar dominance by extending the reach of dollar-denominated payments to markets and users currently outside the formal banking system.” That framing has become the dominant lens through which U.S. policymakers view stablecoin legislation: not as crypto regulation, but as monetary statecraft.

> More than 99% of stablecoin supply is denominated in dollars, a concentration that Federal Reserve Governor Christopher Waller said in December 2024 could “reinforce dollar dominance” if properly regulated.

The geopolitical stakes extend further. China’s digital yuan, the e-CNY, has processed over 7 trillion yuan in transactions since its 2022 pilot launch according to the People’s Bank of China, but its international adoption remains negligible. The euro’s share of global payment stablecoin supply sits below 0.5%. The dollar’s stablecoin dominance is, for now, as complete as its reserve currency dominance in traditional finance. How long that holds depends partly on whether U.S. legislation creates a trusted framework that cements the advantage or creates enough uncertainty to open space for alternatives.

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On-Chain Infrastructure Maturing

The technical infrastructure supporting stablecoin transfer has undergone a transformation as significant as the growth in supply itself. In 2020, the majority of USDT and USDC transfers ran on Ethereum (ETH), and gas fees during periods of congestion routinely made small transfers economically unviable. As of May, the majority of stablecoin transfer volume by transaction count runs on Layer 2 networks and alternative Layer 1s where fees are measured in fractions of a cent.

Tron (TRX) remains the dominant chain for USDT by raw transaction count, processing over 3 million USDT transfers per day according to Tronscan data, primarily because its near-zero fees make it the default for small peer-to-peer remittances in emerging markets. Base, Coinbase’s Ethereum Layer 2, has grown to become the second-largest venue for USDC transfers by volume, processing more than $4 billion in daily stablecoin settlement as of April. Solana‘s throughput of 65,000 transactions per second has made it the preferred chain for high-frequency payment applications, with Visa completing a pilot of USDC settlement on Solana (SOL) in 2023 that demonstrated sub-two-second finality.

> Base processed more than $4 billion in daily stablecoin settlement as of April, establishing Coinbase’s Layer 2 as a major infrastructure layer for onchain dollar transfers.

The maturation of cross-chain bridging is reducing the friction of moving stablecoin supply between networks. Circle’s Cross-Chain Transfer Protocol, or CCTP, enables native USDC burns and mints across eighteen networks as of May without requiring third-party bridges, eliminating the smart contract risk that made early bridge exploits so costly. The total value lost to bridge hacks exceeded $2.5 billion in 2022, according to Chainalysis. CCTP-style native interoperability significantly reduces that attack surface.

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What The Next $250 Billion Requires

Reaching $500 billion in stablecoin supply, a threshold that a growing number of analysts consider achievable within three years, requires solving problems that the first $250 billion largely sidestepped. The most pressing is regulatory clarity in the two largest capital markets: the U.S. and the EU. MiCA provides a workable EU framework. U.S. legislation, if passed in mid-2026 as scheduled, would remove the single largest source of institutional hesitation.

The second requirement is banking integration. For stablecoins to become genuine payments infrastructure rather than a parallel system, they need seamless on and off ramps with commercial bank accounts. The FDIC‘s guidance on bank-crypto partnerships, updated in March, loosened restrictions on banks holding stablecoin reserves in custody, a modest but meaningful step. Several mid-tier U.S. banks including Customers Bancorp (CUBI) and Silvergate‘s successor entities are actively building real-time stablecoin settlement rails for commercial clients.

> Reaching $500 billion in stablecoin supply requires U.S. legislative clarity, deeper bank integration, and resolution of the identity verification gap that makes stablecoin payments risky for regulated institutions.

The third requirement is identity. Most stablecoin transfers today are pseudonymous, which is adequate for peer-to-peer remittances but insufficient for corporate payments, trade finance, and regulated financial services. The emerging solution is the Verifiable Credential standard developed by the W3C, which allows wallets to carry cryptographically verified identity attestations without exposing underlying personal data. Circle, Coinbase, and Polygon (POL) have each invested in wallet-level identity infrastructure that could bridge this gap. Until it scales, stablecoin adoption in regulated corridors will remain limited by compliance friction that legacy wire transfers, ironically, do not face.

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Conclusion

The stablecoin market’s crossing of the $250 billion supply threshold in May is best understood not as a cryptocurrency milestone but as an inflection point in the history of money transmission. The infrastructure being built around dollar stablecoins, from Circle’s compliance rails to Base’s Layer 2 settlement capacity to SWIFT’s tokenization pilots, is designed to last decades, not market cycles.

The competitive dynamics are sharpening fast. Tether retains its dominance in informal and emerging-market corridors where regulatory access matters less than cost and availability. Circle is positioning for the regulated institutional market that U.S. and EU legislation will formalize. A third wave of yield-bearing and asset-referenced instruments is targeting corporate treasury and asset management allocations that neither incumbent currently owns.

The legislative outcomes in Washington over the coming weeks will matter enormously for the competitive structure of this market, but they will not determine whether stablecoin infrastructure becomes permanent. That question is already settled. The $27 trillion in annual settlement volume running over these rails represents real economic activity by real people and businesses. Regulators, legislators, and traditional financial institutions are not deciding whether to allow stablecoins; they are deciding whether to be relevant to them.

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Daniela Kirova

Senior Writer

Daniela Kirova is a finance and cryptocurrency journalist at Nonce Media. Her writing covers economics, digital assets, technology, and innovation, with a focus on making complex financial topics accessible to broad audiences. A multilingual translator fluent in English, German, and Bulgarian, she brings a background in psychology to her analysis of market behavior and investor sentiment.