Ondo Finance has launched the first on-chain Treasury Bond token USDY, officially debuting on the Sei network

The world's leading RWA tokenization platform Ondo Finance has announced that its flagship product — the United States Dollar Yield (USDY) — will officially launch on the Sei Network, becoming the first on-chain sovereign bond asset deployed on this ultra-high-speed Layer1 blockchain.

USDY is currently deployed on multiple blockchains with a Total Value Locked (TVL) of over $680 million, offering a 4.25% annualized yield (monthly updates). It is available to global (excluding U.S.) individual and institutional investors, combining the liquidity advantages of stablecoins with a high-tier investor protection mechanism from traditional finance. This integration with Sei enables high-quality yields to be available for the first time on this chain's infrastructure, capable of processing tens of thousands of transactions per second. As one of the most widely adopted on-chain sovereign bond-like assets, USDY's inclusion marks Sei's official entry into the institutional DeFi market.

“Bringing USDY to Sei is an example of deeply integrating institutional financial products with the next generation of execution layers, which will bring a more capital-efficient new use case to protocols, developers, and end-users.” — Ondo Finance Founder and CEO Nathan Allman stated.

Behind this integration is the market's rapidly growing demand for RWA access on high-performance L1 blockchains. The Sei Network has demonstrated strong performance in 2025, with an impressive annual growth rate of 821% and TVL surpassing $670 million. The inclusion of USDY will further accelerate this momentum, injecting high-quality sovereign bond assets into Sei and complementing its key role in DeFi modular financial products.

“As an industry benchmark for RWA tokenization, we are delighted to welcome USDY into the Sei ecosystem.” — Justin Barlow, Executive Director of the Sei Development Foundation, said, “Sei's groundbreaking infrastructure offers near-instant finality and parallel execution capabilities, making it an ideal platform for institutional financial products; USDY is precisely the kind of high-quality, composable yield primitive that can unlock new possibilities for developers in building the next generation of on-chain applications.”

This integration not only further advances Ondo Finance's mission of “democratizing institutional financial products” but also validates Sei Network's vision of building high-performance digital asset market infrastructure. With the continued rise in stablecoin usage and on-chain sovereign bond demand, the timing of USDY's launch is opportune, providing not only a high-quality yield primitive but also serving as a significant catalyst for ushering in the next phase of on-chain finance.

About Ondo Finance

Ondo Finance is a blockchain technology company focused on real asset tokenization, dedicated to bringing the traditional market onto the chain, accelerating the development of an open and inclusive financial system. For more information, please visit: https://ondo.finance

About Sei

Sei is a high-speed Layer1 blockchain that focuses on providing high-performance infrastructure for the digital asset market. Since its mainnet launch in 2023, it has served over 35 million wallets, processing billions of transactions. It is currently developing the V3 "Giga" upgrade, serving as a new scaling solution for the Ethereum ecosystem. Investors include Multicoin, Jump, Coinbase Ventures, and others.

For more information, please visit: https://www.seifdn.org

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