GENIUS Act Sparks Stablecoin Expansion: How Is the USDC Dominance Landscape Being Reshaped?

In May 2026, the total market capitalization of stablecoins officially surpassed $320 billion. This figure was around $200 billion in early 2025, with a steep growth curve that is rare among any class of financial assets. But what is even more noteworthy than this number are the structural variables driving its growth.

On July 18, 2025, the U.S. President signed the “Guidance and Establishment of the U.S. Stablecoin National Innovation Act,” commonly known as the GENIUS Act, establishing the first comprehensive federal regulatory framework for payment stablecoins. Less than a year later, a structural race around stablecoin issuance quietly began.

More specific signals came in May 2026. At the Consensus conference, Anchorage Digital CEO Nathan McCauley revealed that about 20 financial institutions and large tech companies are queued up to issue their own stablecoins through Anchorage. This is not an isolated event but the start of a momentum release.

Anchorage Takes Center Stage in Stablecoin Infrastructure

In early May 2026, Anchorage Digital—America’s first federally chartered digital asset bank—disclosed a striking data point at the industry conference: after the GENIUS Act, about 20 financial institutions and large tech companies are waiting in line to issue their own stablecoins via Anchorage. McCauley also stated that Anchorage has obtained licensing for all major stablecoins on the market, serving clients including targeted banks and established stablecoin issuers with distribution channels.

In the same week, Anchorage partnered with Google Cloud to launch the Agentic Bank concept—a AI-based banking service system designed to enable AI agents to manage funds and execute transactions securely and compliantly, further linking compliant custody infrastructure with intelligent financial services.

It’s important to clarify that McCauley’s statement reflects Anchorage’s own pipeline. As a primary provider of compliant issuance infrastructure, attracting many prospective clients after clearer regulation is a natural outcome. This does not necessarily mean all these institutions will ultimately successfully launch market-impactful stablecoins. But it reveals a structural shift: stablecoin issuance is transitioning from the domain of a few specialized companies to an infrastructure-level activity involving banks and tech giants.

How the GENIUS Act Changed the Game

The core institutional innovation of the GENIUS Act is that it explicitly defines who can issue stablecoins and under what conditions at the federal legal level for the first time. The bill establishes three compliant issuance pathways—subsidiaries of federally regulated depository institutions approved by federal banking regulators, federally qualified payment stablecoin issuers (non-bank entities approved by OCC), and state-qualified payment stablecoin issuers approved by state regulators. These pathways have different thresholds and applicable scenarios, forming a layered access system.

Historically, stablecoin issuance in the U.S. has been in regulatory ambiguity. Some issuers relied on state trust licenses, others operated without clear federal oversight. The GENIUS Act ends this state of affairs, bringing all payment stablecoin issuance into a mandatory compliance track.

The implementation timetable is equally critical: federal regulators must issue implementing rules by July 18, 2026. The bill takes effect on January 18, 2027, or 120 days after the final regulations are published, whichever is earlier. This schedule creates a “regulatory countdown”—institutions must complete compliance preparations before the law takes effect to participate immediately once the new framework launches.

Between December 2025 and March 2026, federal banking regulators such as FDIC and OCC have issued draft implementation rules covering licensing, reserve standards, capital requirements, AML and sanctions compliance. This rapid build-up of regulatory infrastructure clears the biggest uncertainty barrier for institutions and tech giants to enter.

The Current Landscape of the Stablecoin Market

Let’s look at the facts. According to Gate’s market data, as of May 8, 2026, the total stablecoin market cap is approximately $321.76B. USDT holds a 58.90% market share, with a market cap of about $189.53B and a circulation close to $190 billion; USDC follows with a 24.33% share, a market cap of roughly $78.3B, and a circulation of about $78.39B. Together, they account for approximately 83.23% of the total stablecoin market cap.

It’s important to distinguish a confusing set of data: in terms of issuance volume (circulating market cap), USDT still leads USDC significantly, with a difference of over $110 billion. But in trading volume, a notable shift occurred in 2026—according to a March 2026 report from Mizuho, USDC accounts for 64% of the adjusted trading volume between the two, marking the first time since 2019 that USDC has surpassed USDT in trading volume. USDT’s 24-hour trading volume is about $55 billion.

This divergence—issuance volume led by USDT, trading volume led by USDC—indicates that the stablecoin market is not a “winner-takes-all” single market but is fragmenting into a multi-layered system serving different scenarios. USDT’s competitive advantage mainly relies on first-mover effects and its extensive OTC network coverage, issued on over 15 major blockchains, especially in emerging markets’ on/off ramps, creating strong user stickiness. USDC’s growth logic emphasizes compliance architecture and institutional-grade services, playing a core role in regulated on-chain finance and institutional settlements. This trend offers new entrants opportunities for scenario-specific entry.

Public Opinion and Future Narratives for Stablecoins

Current discussions around stablecoins focus on three main narratives, with clear tensions among them.

Narrative 1: Bank entry will trigger massive deposit migration. According to a study by the U.S. Treasury Advisory Committee, if stablecoins can offer interest returns, about $6.6 trillion in transactional deposits could be at risk of erosion by stablecoins. Recent survey by Cornerstone Advisors shows that 63% of banks have discussed stablecoins at the board or senior management level, and nearly 10% plan to invest or deploy stablecoin-related capabilities in 2026. Under this narrative, bank issuance of stablecoins is not only about entering new markets but also a defensive strategy.

Narrative 2: The “winner-takes-all” among large issuers. This emphasizes network effects and liquidity stickiness, believing USDT and USDC’s first-mover advantages are nearly unassailable. Supporting data is compelling: USDT’s 24-hour trading volume is about $55 billion, accounting for 61.5% of spot trading volume on centralized exchanges. In this narrative, although many new entrants appear, most will only gain limited market share in niche segments.

Narrative 3: Brand and distribution channels will be key differentiators. This stresses that traditional institutions with large user bases can embed stablecoins into existing product matrices for rapid penetration. For example, PayPal’s PYUSD expanded to 70 markets globally in March 2026; Meta launched USDC creator payments in April 2026, distributing earnings via Solana and Polygon; Western Union plans to launch USDPT in May 2026 for its global agent settlement network; Wells Fargo filed a “WFUSD” trademark application in March 2026 covering stablecoins and crypto services. These events support this narrative.

Each of these three narratives has its rationale and key assumptions. The first assumes traditional bank deposits can migrate quickly onto the chain; the second assumes network effects and liquidity persistence; the third assumes brand and channel advantages can be effectively translated into new markets. It’s important to note that these are analytical frameworks and market discussions, not definitive predictions.

Industry Impact Analysis

On the stablecoin market landscape. The GENIUS Act is catalyzing the evolution of stablecoin markets from “duopoly” to “multi-polarization.” This trend manifests at three levels.

First, the number of issuers is increasing significantly. Besides USDT and USDC, since 2026, new stablecoins such as Fidelity Digital Dollar (FIDD), Tether’s USAT (issued by Anchorage, positioned as fully compliant U.S.-domiciled stablecoin), SoFiUSD (issued by a licensed federal bank), OSL and Anchorage’s USDGO, North Dakota’s Roughrider Coin in partnership with Fiserv, and Western Union’s USDPT are launching. The increase in quantity doesn’t necessarily mean quality, but diversification on the supply side is happening.

Second, issuer types are clearly differentiated. They include banks (e.g., Wells Fargo via branding signals, SoFi via licensed bank issuance), payment companies (e.g., PayPal’s PYUSD), asset managers (e.g., Fidelity), tech platforms (e.g., Meta integrating USDC payments), state-level entities (e.g., North Dakota), and specialized crypto firms (e.g., Circle). Each track has its own competitive advantages and constraints.

Third, business models are undergoing significant differentiation. Traditional reserve interest models face narrowing profit margins—higher-quality, shorter-term reserves yield lower returns, and capital buffers are thinner. New entrants need to find differentiated paths: fee-based payment models, white-label issuance services, ecosystem circulation models, etc.

Impact on the banking system. The GENIUS Act has a dual effect: on one hand, it provides a compliant pathway for banks to enter stablecoin markets; on the other, it introduces new competitive pressures—if stablecoins can offer interest, about $6.6 trillion in transactional deposits are at risk of being eroded. In practice, internal responses vary: some institutions have launched stablecoins or signaled clear intentions, while most small and medium banks are still in research phases. This divergence is expected to intensify over the next 12-18 months.

Impact on crypto infrastructure. Compliant custody banks are becoming key infrastructure for stablecoin issuance. Anchorage exemplifies this—rather than issuing directly, it provides compliant custody and issuance services, becoming a “middle office” for multiple institutions. This model allows traditional institutions to enter the stablecoin market relatively quickly, but concentration risk must be acknowledged: if many stablecoins rely on the same custody bank, single points of failure could amplify.

Conclusion

Post-GENIUS Act, the stablecoin market is undergoing a fundamental shift. Previously, issuance was mainly driven by technology, with competition centered on blockchain-native capabilities and first-mover advantages. Now, the focus is shifting toward compliance infrastructure, brand trust, and distribution channels.

The question of “who will be the next USDC” depends on how we interpret USDC’s success. If USDC’s success was about seizing the regulatory vacuum’s first-mover window, that window has closed—new entrants cannot replicate the same path. But if its success was about building market trust through compliance and institutional services, then under the clear rules provided by the GENIUS Act, a group of institutions with existing user bases and brand advantages can establish their own structural advantages in specific scenarios.

From Fidelity’s FIDD to SoFi’s SoFiUSD, from Tether’s compliant USAT to Western Union’s planned USDPT, from Meta’s USDC creator payments to Wells Fargo’s trademark signals, 2026’s stablecoin landscape is becoming more crowded and diverse. But homogeneous stablecoin supply cannot change the overall pattern—true differentiation will come from scenario embedding, compliance depth, and network effects working together.

The story of stablecoins is far from over. “20 institutions queued up” is just the opening signal of this transformation. The real competition and differentiation are just beginning.