Ondo Finance Launches USDY Tokenized Treasury Bill on the Sei Network

Highlights:

• Ondo Finance brings USDY to Sei, boosting access to tokenized U.S. Treasuries.
• Sei’s TVL grows 821%, now integrating institutional-grade assets.
• USDY provides 4.25% APY along with complete ERC-20 composability regarding the DeFi protocols.

Ondo Finance has announced the deployment of its flagship product, USDY, to Sei Network. It is the first deployment of a tokenized U.S. Treasury Bill on this high-speed Layer 1 blockchain. USDY combines the returns of real-world assets with the liquidity of the stablecoin with 4.25% APY.

USDY was previously available on Ethereum, Arbitrum, Solana, and Mantle and is now being added to Sei to tap into its performance. Sei is capable of handling tens of thousands of transactions per second. Through this integration, developers will have access to a high-yield-bearing asset on the Sei ecosystem.

The USDY token is backed by short-term U.S. Treasury Bills and bank demand deposits. It delivers both security and yield. In addition, it is not available in the U.S. and other restricted countries. With a total value locked (TVL) of more than $680 million USDY is one of the leading tokenized treasury assets in the world.

Tokenized Treasuries are coming to @SeiNetwork!

Ondo Finance is bringing our market-leading yieldcoin, USDY, to Sei’s ultra-fast layer 1 blockchain designed for high performance, capital-efficient applications.

Unlocking scalable, onchain yield at the speed of Sei. pic.twitter.com/C3Z9bEGJPn

— Ondo Finance (@OndoFinance) July 17, 2025

Why Ondo Finance Chose Sei Network

The Sei Network has seen a growth of TVL of 821% year over year, with the value surpassing $670 million. Such an increase makes Sei one of the emerging projects related to infrastructure in decentralized finance (DeFi). Furthermore, the finality of the sub-second and execution parallel is a competitive advantage to developers.

Ondo Finance, one of the leaders in the real-world assets tokenization market, chose Sei to further accessibility to institutional-quality products. Using the ERC-20 compatibility, USDY will be composable through decentralized applications on Sei. Developers are not required to go through several layers of protocol to access tokenized Treasuries. Furthermore, this move shifts DeFi to more mature financial primitives. USDY will allow on-chain access to yield without compromising the stability of products based on fiat. It can now serve as productive collateral for new financial applications.

Ondo Finance Expands Onchain Utility

USDY ranks as the second most adopted tokenized treasury asset, holding 32% of the total user base. It ranks second behind the products of BlackRock, Franklin Templeton, Superstate, and Ondo’s own OUSG. This makes USDY a key resource for developers creating next-gen on-chain platforms.

In addition, Ondo Finance keeps expanding its ecosystem. Recently, the company purchased an online gaming company, Strangelove, a blockchain development company. Moreover, it is looking to acquire Oasis Pro to gain access to a broker-dealer license. Such moves are an indication that it aspires to fill the gap between traditional finance and blockchain infrastructure.

Moreover, Ondo maintains close ties with World Liberty Financial, a project connected to Donald Trump’s network. World Liberty Financial owns a large portion of ONDO tokens. Such strategic alignment is an indication of increased interest in asset tokenization by institutions. The Sei Foundation has also made moves to drive growth. A U.S.-based nonprofit now promotes the network, supported by Circle’s investment and stablecoin bridge. These efforts coincide with a more favorable regulatory outlook for tokenized assets.