Market Analysis

Ondo OUSG vs. BlackRock BUIDL: The 2026 RWA Showdown

Jan 28, 202612 min readBy RWA Flows

For institutional investors, the choice often comes down to two titans: Ondo Finance's OUSG (backed by BlackRock ETFs) and BlackRock's direct offering, BUIDL via Securitize.

The Tale of Two Giants

In 2024, Ondo Finance revolutionized the space by wrapping the iShares Short Treasury Bond ETF (SHV) into a tokenized format. By 2025, BlackRock entered the fray directly with BUIDL, partnering with Securitize to offer a compliant, on-chain fund. See our independent OUSG risk analysis and BUIDL risk rating.

Ondo OUSG

4.62%APY

Instant 24/7 Mint/Redeem (rOUSG)
Available on Eth, Poly, Sol, Sui
Indirect exposure (Wrapper)

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BlackRock BUIDL

4.85%APY

Direct relationship with BlackRock
Highest TVL ($550M+)
Only on Ethereum Mainnet

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Liquidity & Composability

This is where Ondo shines. By launching USDY (a yield-bearing stablecoin note) and integrating it deeply into DeFi protocols like Drift and Kamino, Ondo has created utility beyond just holding.

BUIDL acts more like a pristine collateral layer. It is used by FalconX and Hidden Road for collateral mobility but is less "degen-friendly" than OUSG/USDY.

The Verdict

Choose OUSG if you want cross-chain flexibility and DeFi integration. View OUSG score
Choose BUIDL if you are an institution prioritizing direct counterparty risk with the world's largest asset manager. View BUIDL score

Invest Like an Institution

Get the full Onyx Risk Report comparing OUSG vs BUIDL, including solvency proofs, custodian audits, and legal structure analysis.

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