Crypto-CollateralisedSky Savings RateRWA CollateralOn-Chain Governance

USDS (USDS) Analysis

The on-chain, over-collateralised stablecoin — born as DAI in 2017, rebranded to USDS in 2024 under the Sky Protocol.

On-chain collateral vault infrastructure representing a crypto-native decentralised stablecoin

Price

$1.00 (pegged)

Market Cap

Fully Diluted Valuation

24h Volume

Collateral Model

Over-collateralised (crypto + RWAs)

24h Change

~$0.00

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Quick Take

The bottom line on USDS

USDS inherits DAI's 7-year track record as the most durable crypto-native stablecoin, adds a native yield mechanism (Sky Savings Rate), and extends collateral to Real World Assets. The RWA expansion is both the most valuable feature and the most significant new risk.

USDS is the rebranded successor to DAI, the stablecoin created by MakerDAO — now rebranded as Sky Protocol — in 2017. Where USDC and USDT are fiat-backed stablecoins issued by centralised companies holding dollars in bank accounts, USDS is generated on-chain through over-collateralised vaults. Users lock collateral (including ETH, WBTC, and a growing list of RWAs) worth more than the USDS they mint; if the collateral value falls below the required ratio, vaults are automatically liquidated to protect the peg.

The transition from DAI to USDS happened in late 2024 as part of the "Endgame" plan, MakerDAO's multi-year governance and branding overhaul. Existing DAI can be converted 1:1 to USDS. The Sky Savings Rate (SSR), the successor to the DAI Savings Rate, allows USDS holders to earn yield by depositing into the SSR contract — with no counterparty beyond the protocol itself.

The 7-year operating history is USDS's most important credential. DAI/USDS has survived the 2020 COVID crash (including a Black Thursday liquidation crisis), the 2022 bear market, the Terra/UST collapse, the FTX collapse, and the 2023 banking crisis without a sustained depeg. That track record is the most meaningful thing about the asset.

  • Asset type: crypto-collateralised decentralised stablecoin.
  • Creation mechanism: user-minted via over-collateralised on-chain vaults.
  • Yield: Sky Savings Rate — protocol-native yield, no custodial counterparty.
  • Governance: on-chain via SKY token holders.
  • Key risk: RWA collateral dependency and the governance process controlling the savings rate.

Foundation

What USDS actually is

USDS is a decentralised stablecoin. Unlike fiat-backed stablecoins where a company holds dollars and issues tokens representing those dollars, USDS is minted by users who lock collateral in smart contracts. The protocol requires that at any time, the value of collateral in the system exceeds the value of USDS in circulation — this over-collateralisation is what backs the peg without relying on a centralised custodian.

The technical mechanism is a Collateralised Debt Position (CDP). A user deposits collateral (e.g. ETH) into a Maker vault, which allows them to mint USDS up to a certain ratio of the collateral's value. If the collateral's value drops and approaches the liquidation ratio, the vault is liquidated: the collateral is sold at auction, the USDS debt is repaid, and any remaining collateral is returned to the user.

USDS is not entirely decentralised. Several collateral types used to back USDS include Real World Assets (RWAs) — tokenised US Treasury bonds, corporate debt, and real estate loans — held by entities outside the blockchain. These RWA vaults introduce regulatory and counterparty risk that the pure ETH-backed vaults do not carry. As of mid-2026, RWAs represent a substantial and growing portion of USDS collateral.

Why It Exists

Why a crypto-native stablecoin matters

The stablecoin market needs products at both ends of the trust spectrum. USDC and USDT offer peg stability backed by real dollars but require trusting a centralised issuer with banking access. They can freeze accounts, are subject to US sanctions compliance, and depend on the banking system remaining available. USDS offers dollar-peg stability without those dependencies — at the cost of complexity and the risk that comes from crypto-price volatility in the collateral.

For DeFi protocols specifically, having a decentralised stablecoin as a base denomination matters. A lending protocol that uses USDC as its base unit is exposed to Circle's blacklist function — Circle could theoretically freeze the USDC that a protocol holds. A protocol using USDS as its base unit has no such centralised counterparty that can unilaterally affect its operation. This distinction has driven USDS's deep integration into DeFi on Ethereum and across EVM chains.

The Sky Savings Rate is the feature that most clearly differentiates USDS from its competitors. Depositing USDS into the SSR contract earns yield set by Sky governance without any additional counterparty risk. The yield comes from protocol fees charged to vault creators and from returns on RWA collateral. This makes USDS a yield-bearing dollar alternative within DeFi.

The Sky Savings Rate provides on-chain yield with no custodial counterparty. The rate is set by governance — it can be reduced to zero, but it cannot be blocked by a bank, a regulator, or an exchange.

The Mechanics

Vaults, the peg stability module, and the savings rate

CDP vaults

A user who wants USDS goes to Sky Protocol's interface and opens a vault with a supported collateral type. They deposit the collateral and choose how much USDS to mint, staying within the collateralisation ratio limit for that vault type. The USDS is freshly minted and sent to the user. The user pays a "stability fee" (an annual interest rate) over time on their USDS debt.

If the collateral value falls below the liquidation threshold, a keeper (an automated bot incentivised by liquidation rewards) triggers the liquidation. The collateral is auctioned to repay the USDS debt plus a liquidation penalty. This mechanism is the primary protection against USDS being under-collateralised.

Peg stability module (PSM)

The Peg Stability Module allows 1:1 swaps between USDS and other stablecoins (USDC, GUSD, and others) at minimal fees. The PSM is both a peg defence mechanism and a source of RWA exposure — the USDC flowing into the PSM is invested in T-bills and other RWAs by Sky-authorised entities, earning yield that funds the savings rate.

The PSM substantially reduces the collateral-drawdown risk for USDS: instead of relying solely on ETH or crypto assets, the protocol holds large liquid stablecoin and RWA positions that can be used to defend the peg quickly. The trade-off is that it introduces the same centralised stablecoin and RWA exposure that the crypto-native design was meant to avoid.

Sky Savings Rate

The Sky Savings Rate (SSR) is set by governance. It is funded by stability fees from vaults, by PSM fee income, and by yield from RWA and PSM investments. USDS holders deposit into the SSR contract and receive sUSDS (savings USDS), a yield-bearing receipt token. The SSR adjusts via governance proposals and on-chain votes.

The rate has ranged from 0% (during low-activity periods) to several percent during periods of high protocol revenue. It is not guaranteed. Governance can reduce it to zero. In practice, Sky governance has maintained competitive SSR rates to attract USDS deposits and support the peg.

Token Economics

Supply, collateral composition, and the DAI-to-USDS migration

Elastic supply

USDS supply is elastic — it grows when users mint more (by locking collateral and borrowing) and shrinks when users repay their vaults. Total supply responds to demand for leverage (users minting USDS against crypto collateral to buy more crypto) and to demand for the savings rate (users who want to earn SSR yield first need to acquire USDS).

Supply peaked around the DeFi highs of 2021, contracted during the bear market, and has grown again through 2025–2026 as the SSR has attracted yield-seeking capital and RWA collateral has expanded the protocol's capacity.

RWA collateral and centralisation

Real World Assets now account for a substantial portion of USDS collateral. These are primarily tokenised US Treasuries and other short-duration fixed income, held by legally structured special purpose vehicles and onboarded through approved counterparties. The RWA collateral earns yield that flows into the savings rate.

The centralisation concern is genuine: RWA collateral can be frozen, repossessed, or disrupted by legal or regulatory action in ways that ETH collateral cannot. This does not mean the peg will break, but it means the "censorship-resistant decentralised stablecoin" claim needs a more nuanced reading than it deserved under the original ETH-only collateral model.

DAI migration

Existing DAI holders can convert to USDS at a 1:1 rate directly through the Sky Protocol. The migration is voluntary and has been proceeding gradually. DAI continues to exist and function during the transition period. Over time Sky governance intends to deprecate DAI in favour of USDS, but this is a multi-year process.

RWA collateral now represents a substantial share of USDS backing. This is not the same risk as algorithmic stablecoin failure — but it means USDS is no longer the fully censorship-resistant stablecoin it was marketed as in its early years.

Price History & Peg Events

Peg events and the 7-year track record

USDS (as DAI) has maintained its $1.00 peg through multiple extreme market events. The most serious historical event was Black Thursday in March 2020, when ETH crashed by over 50% in hours, causing mass vault liquidations. A bug in the auction mechanism allowed liquidators to bid zero in some auctions, creating approximately $4 million in bad debt. Governance resolved this through a collateral auction but it revealed protocol risk under extreme liquidation conditions.

During the Terra/UST collapse in May 2022 and FTX's collapse in November 2022, DAI maintained its peg with modest volatility. During the March 2023 USDC banking crisis, DAI briefly depegged slightly (to ~$0.97) because of its PSM exposure to USDC — when USDC depegged, DAI followed. It re-pegged quickly after USDC recovered.

The track record across seven years and multiple black-swan events — without a sustained depeg or protocol failure — is the most compelling evidence for USDS as a serious stablecoin product. No other crypto-native stablecoin model has this track record at USDS scale.

Rivals

Stablecoin competitive landscape

USDT and USDC both have larger market caps and more trading-pair liquidity. Their advantage is simplicity and deep exchange integration. USDS's advantage is protocol-native yield and on-chain governance without a centralised custodian.

Ethena's USDe (analysed separately in this series) uses a delta-neutral synthetic model — not crypto-over-collateralised — and offers high yields. It is a more exotic instrument with different risk characteristics. Sky governance competes for yield-seeking stablecoin capital with Ethena by adjusting the SSR.

New entrants in the RWA-backed and yield-bearing stablecoin category (Ondo Finance, BUIDL, Superstate) are primarily targeting institutional allocators and require KYC. USDS is permissionless — anyone can mint, hold, and earn the SSR without identity verification.

Who It Is For

Who USDS is genuinely useful for

USDS is best suited for DeFi users who want a decentralised stablecoin with native yield and are comfortable with the technical complexity of CDP mechanics and on-chain governance. The SSR makes USDS a more compelling hold than bare USDC or USDT for users who live primarily in DeFi.

DeFi protocols that need a stablecoin with no centralised counterparty blocking function — for governance-critical operations, permissionless lending, and cross-border DeFi applications — have good reasons to prefer USDS over fiat-backed alternatives.

It is less appropriate for institutional users who require KYC-compliant stablecoin rails, for users in jurisdictions where crypto collateral volatility creates uncomfortable risk, or for users who want the simplest possible USD stability without understanding CDP mechanics.

The cases

Bull case and bear case

Bull case

  • 7-year track record (as DAI/USDS) across multiple market crises without a sustained depeg is the strongest evidence base of any decentralised stablecoin.
  • Sky Savings Rate provides protocol-native yield — no custodial counterparty, no bank dependency — which is unique at stablecoin scale.
  • Deep DeFi integration on Ethereum and EVM chains as the base denomination of choice for decentralisation-sensitive protocols.
  • RWA collateral expansion has increased the protocol's revenue capacity and diversified the collateral base beyond crypto alone.
  • Permissionless minting and use — no KYC, no counterparty, no geographic restrictions for DeFi access.

Bear case

  • RWA collateral expansion has introduced centralised counterparty and regulatory exposure that the original DAI design deliberately avoided.
  • PSM exposure to USDC means USDS partially inherits USDC's bank-system and Circle-censorship risk.
  • The Endgame governance overhaul (DAI ? USDS, MKR ? SKY) has created governance fatigue and uncertainty about the long-term protocol direction.
  • Competitor yield-bearing stablecoins (Ethena USDe, institutional RWA products) create yield competition that requires governance to continuously adjust the SSR.
  • CDP model complexity — liquidation risk, stability fees, vault management — remains a barrier to mainstream user adoption.

Where to buy

Where to Buy USDS

USDS trades on a wide range of centralised exchanges and decentralised liquidity pools. The table below covers the highest-volume venues as of April 2026, sourced from CoinMarketCap market data.

ExchangePairPrice
CoinbaseUSDS/USDliveBuy USDS
KrakenUSDS/USDliveBuy USDS

Decentralised exchanges

CryptoTokenTalk may earn a commission if you buy USDS via these links. This does not affect our editorial coverage or scores. Prices sourced from CoinMarketCap, April 19, 2026. Always verify current prices before trading.

FAQ

Frequently asked questions

What is the difference between USDS and DAI?

USDS is the rebranded successor to DAI under the Sky Protocol (formerly MakerDAO). The two are convertible 1:1. The rebrand is part of the "Endgame" governance overhaul. USDS has the same backing mechanism as DAI but adds the Sky Savings Rate as a native yield mechanism and continues expanding to additional collateral types including Real World Assets.

How does the Sky Savings Rate work?

USDS holders deposit their USDS into the SSR contract and receive sUSDS (savings USDS) in return. The sUSDS accrues value over time as the savings rate accumulates. The rate is set by Sky governance and funded by stability fees from vaults and yield from Real World Asset collateral. Depositing into the SSR has no lock-up — users can withdraw at any time.

What are Real World Assets in USDS collateral?

Real World Assets are tokenised off-chain financial instruments — primarily US Treasury bonds, short-term government debt, and other fixed-income instruments — that have been onboarded as collateral in Sky Protocol. They are held by legally structured special purpose vehicles. RWA collateral earns yield but introduces counterparty and regulatory risk that pure crypto collateral does not.

Can USDS be frozen?

The USDS token itself cannot be frozen by Sky governance or Circle — it is a protocol-native asset. However, the RWA collateral backing part of USDS supply is held by regulated entities that can be subject to legal action or regulatory freeze. This introduces indirect censorship risk not present in the original ETH-only collateral model.

How is USDS different from algorithmic stablecoins like UST?

USDS is backed by collateral worth more than the USDS in circulation at all times. Terra's UST was algorithmic — it relied on a demand-supply mechanism with LUNA rather than tangible collateral. If demand fell, the mechanism destabilised. USDS's over-collateralisation means the peg can survive significant collateral price drops through liquidations. The two designs are not comparable in terms of failure modes.

What is the Black Thursday event?

On 12–13 March 2020, ETH crashed by over 50% in hours. The mass liquidations on MakerDAO (now Sky) overwhelmed the auction system, and a bug allowed some liquidators to bid zero for collateral. This created approximately $4 million in bad debt. MakerDAO governance auctioned MKR tokens to cover the shortfall. The protocol survived but the event revealed real protocol-level risk under extreme conditions, and improvements to the auction system were subsequently implemented.

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