S&P Global Ratings assigned a ‘B-‘ issuer credit rating with a stable outlook to Sky Protocol on August 7, 2025. It’s the first time a major rating agency has given a full structured-finance credit rating to a DeFi platform.
What the rating actually says
‘B-‘ sits firmly in speculative-grade territory, sometimes called “junk” in the bond market. It signals that the issuer can meet current financial commitments but faces significant ongoing uncertainties.
The rating covers Sky Protocol’s stablecoins, USDS and DAI, along with their associated savings tokens, sUSDS and sDAI. S&P evaluated Sky’s ability to keep USDS pegged to the US dollar and assigned a ‘4 – constrained’ score, indicating significant risks to peg stability during adverse market conditions.
Sky Protocol’s anchor was rated ‘bb’, sitting four notches below the US bank anchor of ‘bbb+’.
S&P flagged several key risks: high depositor concentration, reliance on the protocol’s founder, and regulatory uncertainty.
Why this matters more than the grade suggests
Large institutional funds, pension managers, insurance companies, and sovereign wealth funds often operate under mandates that restrict where they can allocate capital. Many of those mandates require investments to carry a credit rating from a recognized agency. No rating, no allocation.
The bigger picture for DeFi
Sky Protocol evolved from MakerDAO, one of the oldest protocols in decentralized finance. DAI has been around since 2017.
S&P’s concerns about founder reliance and governance structures suggest that the things rating agencies value — predictability, transparency, centralized accountability — can sit uncomfortably alongside DeFi’s core ethos of decentralization.
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