Sky Protocol Guide 2026: USDS, SKY & the MakerDAO Rebrand
Updated April 2026 · ~11 min read
In 2024, MakerDAO — the oldest decentralized stablecoin protocol on Ethereum — formally rebranded to Sky, launching a parallel stablecoin (USDS) and governance token (SKY) as the first visible milestone of Rune Christensen's multi-year Endgame roadmap. By Q2 2026, Sky is the second-largest decentralized stablecoin issuer after Ethena, and USDS has quietly become the plumbing behind a large share of DeFi lending, Real-World Asset flows, and cross-chain savings products.
Why MakerDAO became Sky
MakerDAO carried a decade of brand baggage — a governance layer that had grown opaque, a collateral book dominated by USDC, and a product surface that hadn't meaningfully changed since the multi-collateral DAI launch. The Endgame plan proposed a clean reset: a new brand, a restructured governance system, a family of semi-autonomous SubDAOs called Stars, and a path toward a fully decentralized chain of Sky's own. The Sky rebrand is the execution layer of that plan.
USDS: a 1:1 upgrade from DAI
USDS is not a new stablecoin in any mechanical sense. It shares the same collateral pool as DAI, and any holder can swap between the two 1:1 through the official converter with no fee. What changed is emphasis: Sky now routes new incentives, RWA yield, and integrations primarily through USDS. DAI continues to exist for users and venues that prefer the legacy brand, but ecosystem momentum is squarely behind USDS.
For readers familiar with the Ethena USDe model, the contrast is useful. USDe is a delta-neutral synthetic dollar that earns funding-rate yield. USDS is a collateralized debt position stablecoin whose yield comes from stability fees and Treasury bill income. Both reached the top of the decentralized stablecoin leaderboard in 2025–26, but they answer very different questions about what a dollar should be on-chain.
The Sky Savings Rate (SSR)
The SSR is Sky's native yield module — the successor to the DAI Savings Rate. Any USDS holder can deposit into the SSR contract and earn a governance-set rate paid from protocol revenue: stability fees on collateralized vaults, yield on the tokenized Treasury allocation, and Spark-originated interest. In Q1 2026 the SSR has tracked the short end of the US rate curve, and many DeFi protocols price their own "risk-free" benchmark off of it.
Stars: the SubDAO architecture
Stars are Sky's SubDAOs — independent product teams with their own token, governance, and vertical focus, plugged back into Sky for liquidity and USDS issuance. The rationale is operational: instead of routing every product decision through a single monolithic governance process, each Star runs its own roadmap while Sky core governs the base monetary layer.
The most visible Star is Spark, which runs SparkLend (a fork of Aave v3 tuned for Sky collateral) and the Spark Liquidity Layer, a cross-chain routing engine that deploys idle USDS into the best available venues on mainnet, Base, Arbitrum, and Solana. Other Stars focus on AI-native tooling, RWA origination, and ecosystem growth.
SKY tokenomics & the MKR upgrade
SKY is the governance token that replaces MKR, with a 1:24,000 conversion rate via the official upgrader. The large multiplier is cosmetic — it lowers the per-token unit price so SKY can function as a rewards and farming token without requiring fractional units. Governance power per dollar is unchanged by the conversion itself.
Value accrual follows a revised buyback and distribution model: protocol surplus beyond the system buffer is used for SKY buybacks, which are then routed to stakers and ecosystem incentive programs. This is a meaningful change from the MKR era, where buybacks were simply burned. The new structure trades pure deflation for an active incentive budget that can be directed at growth.
Real-World Assets and the RWA book
A large share of USDS backing now sits in tokenized US Treasuries and short-duration off-chain credit, managed through bankruptcy-remote legal structures. This is what allows the SSR to pay a yield comparable to short T-bills: Sky is effectively passing through the Treasury coupon, minus a spread, to on-chain holders.
Readers comparing this to the broader RWA landscape should pair this guide with our Ondo Finance guide and the broader RWA tokenization guide. Sky is a demand sink for these products — every basis point of Treasury yield it captures flows through to USDS holders via the SSR.
Risks to understand
Sky's biggest structural risk is the exposure to off-chain counterparties in the RWA book. The tokenized-Treasury positions sit inside bankruptcy-remote SPVs, but the chain of custody, auditors, and custodians is real-world infrastructure with real-world failure modes. A second risk is governance complexity: the Stars architecture expands attack surface and creates coordination overhead. And third, the USDS/DAI split creates a long tail of venue integration work — a subtle form of liquidity fragmentation that matters most during periods of stress.
Frequently Asked Questions
Is USDS safer than DAI?
They share the same backing, so the collateral-level risk is identical. USDS carries additional integration risk during the rollout period but benefits from fresh governance attention and priority access to new RWA allocations.
Does Sky have its own chain?
Sky is still primarily deployed on Ethereum mainnet, with cross-chain USDS issuance on Base, Arbitrum, and Solana. A dedicated Sky chain (the "NewChain" in the Endgame plan) remains on the longer-term roadmap.
Where can I earn the Sky Savings Rate?
Directly at the Sky front-end, or through integrated venues — Spark, Morpho vaults, and several aggregators route USDS into the SSR under the hood.