Circle USYC Overtakes BlackRock's BUIDL as Largest Tokenized Treasury Fund
Circle's USYC has overtaken BlackRock's BUIDL as the world's largest tokenized money market fund, a type of investment product that holds U.S. Treasury securities and trades on blockchain networks. USYC reached $1.69 billion in assets while BUIDL fell to $1.68 billion. USYC grew 11% in 30 days while BUIDL declined 2.85%, according to RWA.xyz data.
The milestone was achieved in late January 2026, marking a significant achievement for Circle's tokenized treasury offering. However, Arkham Intelligence data shows Binance holds $1.43 billion of USYC, representing 94% of the total supply. Circle announced its partnership with Binance in July 2025, allowing institutional clients to use USYC as backing for trades on the exchange.
USYC Growth Accelerates Amid 2026 Expansion Plans
By January 27, 2026, USYC managed 1.6 billion dollars in assets. The asset provides unlimited access and close-to-instant redemptions. The company's tokenized money market fund, USYC, expanded more than 200% since June 2025 to approximately $1.6 billion in assets as of January 2026.
The USDC issuer intends to further integrate USYC into treasury, capital, and collateral market operations in 2026. The company also said it will deepen the utility of USDC, EURC, USYC, and partner tokens while extending their presence to new chains.
Circle's Broader 2026 Infrastructure Initiative
Circle has announced its 2026 product roadmap, focusing on creating an internet-native financial system. The company plans to leverage the Arc blockchain to enhance enterprise-grade infrastructure and expand the global use of digital assets like USDC and USYC.
Circle's architecture includes three reinforcing pillars: Widely adopted regulated stablecoins USDC, EURC, and leading tokenized money market fund USYC; Arc, the enterprise-grade layer-1 blockchain built by Circle and engineered as the Economic Operating System (OS) for the internet, alongside robust developer tools and seamless interoperability infrastructure; and, Circle applications, including Circle Payments Network (CPN), an application coordination layer that orchestrates programmable, compliant and auditable payments.