Ondo Finance has partnered with BlackRock and Securitize to submit OUSG to Sky Ecosystem’s Spark Tokenization Grand Prix, which targets $1 billion in tokenized financial assets. Ondo is proposing OUSG to help SparkDAO and the wider Sky ecosystem diversify real-world assets (RWAs) while gaining onchain liquidity and Treasury exposure. OUSG supports instant subscriptions and redemptions of up to $25 million per day, with capacity planned to reach $50 million by year-end. It also provides daily interest accruals, low fees, rebasing and non-rebasing options, and access on Ethereum and Solana. Ondo said OUSG has more than $600 million in total value locked (TVL) and gives holders Delaware limited partnership rights through a structure intended to maximize bankruptcy remoteness. The proposal includes a liquidity facility supported by BlackRock, Securitize and Circle, alongside plans to add more facilities and stablecoin pairs, including USDS. If both OUSG and BUIDL are onboarded, Sky could potentially unwrap OUSG into BUIDL for portfolio rebalancing, while OUSG could buy other suitable assets. Ondo also said its Global Market initiative could broaden the fixed-income products available to the Sky ecosystem.