Stablecoins have crossed a threshold that many in traditional finance once dismissed as impossible. In 2025, dollar-pegged digital tokens settled approximately $33 trillion in on-chain transaction volume, nearly double the $16.7 trillion processed by Visa during the same period. When Mastercard’s roughly $12.5 trillion is added to the comparison, stablecoins as a single asset class have eclipsed the combined throughput of the world’s two largest card networks. This is not a temporary spike driven by crypto speculation. It is a structural shift in how value moves across borders, between businesses, and into the hands of individuals in economies where local currencies are failing.
The implications extend far beyond cryptocurrency trading desks. Banks, payment processors, and even the card networks themselves are racing to integrate stablecoin rails into their core infrastructure. Visa has expanded its stablecoin settlement pilot to nine blockchain networks and reported a $7 billion annualized run rate in the second quarter of fiscal 2026, representing more than 50% sequential growth. Mastercard agreed to acquire London-based stablecoin infrastructure firm BVNK for up to $1.8 billion, its largest bet yet on digital currency mainstreaming. Western Union launched its own dollar-backed token, USDPT, in May 2026. The incumbents are not fighting the tide. They are buying boats.
The Scale of the Shift: Numbers That Redefine Payments
Understanding why stablecoin volume surpassing Visa matters requires looking at both raw and adjusted figures. Raw on-chain volume includes bot activity, internal exchange transfers, and market-making flows that do not represent genuine economic activity. Even after stripping these out, the adjusted numbers remain staggering. Visa’s own on-chain analytics tool, which filters out MEV activity and internal exchange transfers, pegs organic stablecoin volume at roughly $9 trillion to $11 trillion annualized as of early 2026. That adjusted figure alone already rivals Mastercard’s full annual throughput.
The growth trajectory is equally telling. Stablecoin adjusted volume climbed from approximately $0.5 trillion in 2022 to more than $7 trillion by early 2026. In the first quarter of 2026, monthly stablecoin transfer volume averaged $3.8 trillion, while Visa processed approximately $1.3 trillion per month and Mastercard around $850 billion. Projections from Standard Chartered’s digital assets research desk suggest stablecoins could process between $40 trillion and $46 trillion in raw on-chain volume by the end of 2026, expanding at roughly 55% year-over-year.
A critical distinction separates stablecoin volume from card network volume: stablecoins are used for both payments and as a settlement layer for trading, lending, collateral, and yield generation. A single USDC token may be used ten times in a single day across different protocols, making it behave more like cash than an idle balance. This velocity is a feature, not a bug. It means stablecoins are becoming the base layer for an entire on-chain financial system, not merely a payment alternative.
What Is Driving the Trillion-Dollar Flow?
Stablecoin growth is no longer dependent on crypto trading cycles. Three distinct forces are pushing volume past card networks, each contributing a different slice of the monthly flow.
A. Cross-Border B2B Payments
Cross-border business payments represent the single largest organic driver. Corporates settled an estimated $2.4 trillion in B2B stablecoin payments during 2025, with the figure expected to double in 2026, according to a Citi Treasury Services note published in February 2026. Companies like SpaceX, ScaleAI, and several major commodities traders have publicly confirmed using USDC and USDT for supplier payments in markets where SWIFT rails are slow or expensive. The appeal is straightforward: settlement in seconds, fees under 10 basis points, and no correspondent banking delays. B2B stablecoin payments have expanded from under $100 million per month in 2023 to more than $6 billion by mid-2025, now making up approximately 60% of real economic activity on stablecoin rails.
B. On-Chain Treasury and DeFi Activity
Stablecoins serve as the base trading pair on every major decentralized exchange, and lending protocols like Aave and Sky hold over $80 billion in stablecoin deposits as of April 2026. Treasury managers increasingly park idle capital in tokenized money market funds denominated in USDC, earning yield while maintaining liquidity. This is not speculative trading. It is institutional cash management migrating to blockchain infrastructure because it is faster, more transparent, and more programmable than traditional treasury operations.
C. Emerging-Market Dollar Demand
In countries experiencing currency devaluation, capital controls, or banking instability, stablecoins have become a practical savings tool. Argentina, Turkey, Nigeria, and Venezuela have seen widespread adoption of USDT as a store of value for ordinary citizens. This is not a crypto-native use case. It is dollarization by another name, driven by necessity rather than ideology. Stablecoins now represent more than 1% of all US dollars in circulation, with 99% of them pegged to the dollar.
The Two-Headed Stablecoin Market: USDT and USDC
The stablecoin market remains top-heavy, with Tether and USDC accounting for about 82% of total market capitalization. But the two leaders have evolved fundamentally different business models.
A. Tether (USDT): The Store of Value King
Tether maintains dominance by market cap, with approximately $184 billion in circulation and roughly 59% market share as of mid-2026. Its market share has declined from over 70% in early 2023, partly due to European MiCA regulations that led some exchanges to delist USDT, and partly because its on-chain trading volume has been surpassed by USDC. Tether’s strength lies in emerging markets, where users rely on it as a dollar substitute. Tether alone holds $127 billion in US Treasury securities, making its issuer one of the largest holders of US government debt globally.
B. USDC: The Flow King
USDC has become the preferred stablecoin for institutional and compliance-focused applications. In January 2026, USDC processed $8.3 trillion in on-chain transaction volume in a single month, compared to USDT’s $1.7 trillion. Visa, Stripe, and JPMorgan have chosen USDC as their primary stablecoin infrastructure for cross-border settlement and on-chain bond transactions. Circle, USDC’s issuer, holds $25 billion in Treasury securities and has positioned itself as the regulated, transparent alternative for enterprises that cannot afford counterparty risk.
The divergence between USDT and USDC reflects a broader truth about the stablecoin market: different users have different needs. USDT serves the unbanked and the underbanked who need dollar access. USDC serves institutions that need programmable dollars with regulatory clarity. Both are growing, and both are necessary for the ecosystem to function at scale.
The Infrastructure Land Grab: Incumbents Embrace Stablecoins
The most telling signal that stablecoins have arrived is not the volume figures. It is the behavior of the incumbents who once viewed them as a threat.
A. Visa’s Multi-Pronged Strategy
Visa has moved aggressively to integrate stablecoin settlement into its network. In April 2026, the company expanded its stablecoin settlement pilot to support nine blockchain networks and reported a $7 billion annualized run rate in the second quarter of fiscal 2026, representing more than 50% sequential growth. Visa also partnered with Brale to explore private stablecoin settlement for institutional payments on the Canton Network, enabling banks and fintechs to settle transactions using customized, fiat-backed stablecoins rather than traditional banking rails. Over 160 stablecoin-linked card programs are live worldwide, with stablecoin-linked card payment volume up nearly 200% year over year.
B. Mastercard’s Infrastructure Acquisition
Mastercard took a different approach, acquiring rather than building. In March 2026, the company agreed to purchase BVNK, a London-based stablecoin infrastructure firm, for up to $1.8 billion. BVNK bridges traditional fiat systems with blockchain-based transactions, allowing businesses to move money in seconds across more than 130 countries. Its clients include Worldpay, Deel, and Flywire. Mastercard also partnered with SoFi to support settlement through SoFiUSD, giving network participants the ability to complete transactions outside traditional banking hours.
C. Western Union and PayPal Enter the Fray
Western Union launched its own dollar-backed stablecoin, USDPT, in May 2026, leveraging its 170-year-old brand and global agent network to reach customers who may never interact with a crypto exchange. PayPal has expanded its PYUSD stablecoin, which reached a $2.8 billion market cap by mid-2026. These are not experiments. They are strategic pivots by companies that recognize the payment landscape is shifting beneath their feet.
Regulation: From Uncertainty to Framework
The regulatory environment for stablecoins has transformed dramatically since 2024. What was once a patchwork of unclear rules and enforcement actions has become a structured framework in major jurisdictions.
A. The GENIUS Act in the United States
Signed into law on July 18, 2025, the GENIUS Act established the first federal regulatory framework for payment stablecoins in the United States. The law requires that every stablecoin be backed 1:1 by real reserves, that issuers publish monthly reserve reports, and that holders receive priority in bankruptcy proceedings. Crucially, the law permits banks to issue their own stablecoins, opening the door for traditional financial institutions to compete directly with Tether and Circle. A survey by EY and Coinbase of 211 US institutional investors found that 83% believed the GENIUS Act would increase their willingness to engage with stablecoins.
B. Europe’s MiCA Framework
The European Union’s Markets in Crypto-Assets regulation, known as MiCA, has created regulatory clarity in EU markets, though it has also led to some exchanges delisting USDT due to compliance concerns. MiCA imposes strict reserve requirements and caps on non-euro stablecoins used for payments, favoring euro-denominated tokens. Despite these restrictions, the framework has provided the legal certainty that institutional players need to build stablecoin products for European markets.
C. United Kingdom and Hong Kong
The Bank of England and the Financial Conduct Authority published a joint approach document in 2026 setting out how the UK’s stablecoin regime will apply to systemic issuers. The framework creates a two-tier system: the FCA regulates all UK-issued qualifying stablecoins, while issuers whose coins are widely used in payments fall under joint Bank-FCA supervision once recognized as systemic. Hong Kong enacted its Stablecoin Law in August 2025, and the Hong Kong Monetary Authority implemented a stablecoin issuer regime under the Stablecoins Ordinance effective August 1, 2025.
Stablecoins vs. Card Networks: A Fair Comparison?
Critics rightly point out that comparing stablecoin on-chain transfer volume to card network payment volume is not apples-to-apples. Card networks measure payment transactions consumer purchases, merchant settlements, and cash withdrawals. Stablecoin volume includes trading, lending, collateral movements, and internal exchange transfers that would not appear on a card network at all.
But the criticism misses the larger point. Even if only 30% of stablecoin volume represents genuine payment activity, that still amounts to nearly $10 trillion annually roughly two-thirds of Visa’s total throughput. And the adjusted figures from Visa’s own analytics tool confirm that organic stablecoin volume is already in the $9 trillion to $11 trillion range. The direction of travel is unmistakable. Stablecoins are not replacing Visa tomorrow. They are building a parallel settlement layer that will eventually handle a significant portion of global value transfer, and the card networks are choosing to participate rather than compete.
What This Means for the Future of Payments
The convergence of stablecoins and traditional payment networks is creating a hybrid financial system. In this system, stablecoins provide the settlement layer, while card networks and fintechs provide the user interface and merchant acceptance. Visa and Mastercard are not losing relevance. They are evolving from payment processors into infrastructure providers that bridge fiat and blockchain rails.
For businesses, the implications are practical. Cross-border payments that once took days and cost 3–5% in fees can now settle in seconds for under 10 basis points. Treasury operations can earn yield on idle cash while maintaining liquidity. Supplier payments to emerging markets can bypass correspondent banking bottlenecks entirely. These are not theoretical benefits. They are being realized today by companies of all sizes.
For individuals, particularly those in countries with unstable currencies, stablecoins offer something that traditional banking has failed to provide: reliable access to dollar-denominated savings without the need for a US bank account. This is financial inclusion in its most tangible form.
The stablecoin market is projected to reach $300 billion to $320 billion in total market capitalization by the end of 2026, up from roughly $5 billion in 2020 a sixty-fold increase in six years. As regulation solidifies, infrastructure matures, and institutional adoption accelerates, the gap between stablecoin volume and card network volume will continue to widen. The question is no longer whether stablecoins will become a major part of the global payment system. They already are. The question is how quickly the rest of the financial world will adapt.
