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Origin (OUSD) Review

Open code and component-level audits for a yield-bearing dollar

of 10

Origin (OUSD) scores 8.8 out of 10 in yield aggregators: MIT-licensed code, audits mapped to each component, and a 20% performance fee with every APY published net of it. Redemption can take up to 24 hours, and the docs never state zero mint or redemption fees. Desk research, checked November 1, 2026.

Performance fee

20% of yield, never principal; published APYs are net of it

Backing

100% USDC, lent on Morpho; under 20% in a Curve OUSD/USDC pool

Redemption

1:1 for USDC in the app: 10 minutes, or up to 24 hours

Licence

MIT (origin-dollar repository)

Audits

Trail of Bits, Solidified, OpenZeppelin, Certora, Sigma Prime (2026)

Scores

Fee disclosure
8.0
Licence & code openness
10.0
Audit disclosure
10.0
Custody & control
8.0
Strategy transparency
8.0

Each criterion carries equal weight. The overall score is the average of these 5 scores — (8.0 + 10.0 + 10.0 + 8.0 + 8.0) ÷ 5 = 8.8.

Pros

  • Licence 10: origin-dollar repository carries an MIT LICENSE file and is actively maintained
  • Audit disclosure 10: reports mapped to each OUSD component, through a February 2026 Sigma Prime review
  • Strategy transparency 8: every published APY stated net of the 20% fee; yield sources documented
  • Custody 8: OUSD stays in the wallet; terms disclaim custody; 1:1 USDC redemption in the app

Cons

  • Fee disclosure 8: docs do not state that minting, management or redemption are fee-free
  • Direct redemption takes 10 minutes to 24 hours, longer if Morpho markets are fully borrowed
  • Yearn can reweight Morpho markets within Origin's limits; rebalancing is manual
  • Most contracts are upgradeable by xOGN vote after a 48-hour timelock

How Origin (OUSD) scores in yield aggregators

This entry rates Origin Dollar (OUSD), Origin's rebasing, yield-bearing dollar token, in our yield aggregator ranking. OUSD belongs here because it is a single vault: USDC deposited behind it is lent on Morpho and partly placed in a Curve OUSD/USDC pool, and the yield is paid out by increasing holders' balances. The basis is desk research of Origin's documentation, terms of use and the origin-dollar GitHub repository, checked on November 1, 2026. No OUSD was minted or redeemed. The category uses five criteria, each marked 0 to 10 and weighted equally, as set out in our ratings methodology.

CriterionWhat the sources showMark
Fee disclosureA 20% performance fee on yield, never on principal, published on a dedicated fee page. No redemption fee is listed, but the docs do not state that management or redemption fees are zero.8
Licence & code opennessorigin-dollar repository carries an MIT LICENSE file, detected by GitHub as MIT. The repository was still being updated in November 2026.10
Audit disclosureThe audits page maps reports to each OUSD component: Trail of Bits and Solidified (2020), OpenZeppelin (2021 and 2024), Certora formal verification (2024) and Sigma Prime (vault and cross-chain upgrade, February 2026).10
Custody & controlOUSD stays in the holder's wallet and is redeemable 1:1 for USDC in the app, in 10 minutes or up to 24 hours. The terms say Origin does not custody, control or manage user assets. Contracts are upgradeable after an xOGN vote and a 48-hour timelock.8
Strategy transparencyEvery APY Origin publishes is stated to be net of the fee. Yield sources (Morpho markets on three chains, the Curve pool, kept under 20% of collateral) and the Origin/Yearn curation split are documented.8

The overall score is the plain average: (8 + 10 + 10 + 8 + 8) / 5 = 44 / 5 = 8.8.

No mark changed at this check. Each was re-read against current sources, and the evidence either held or strengthened. A dedicated performance-fee page now sets out the 20% rate and the net-of-fee APY rule. The audits page now maps reports component by component and includes a Sigma Prime review from February 2026. The overall stays at 8.8.

Strongest criteria: licence and audits

Licence & code openness scores 10. The origin-dollar repository's LICENSE file is MIT, which the rubric places at the top of the scale, and the repository is actively maintained. Anyone can read, fork and check the vault, token and strategy code that holds the USDC.

Audit disclosure also scores 10. Origin's audits page does more than list firms. It maps each report to the components it covers, including the shared OUSD.sol token core, the VaultAdmin, VaultCore and VaultStorage contracts, the ERC-4626 wrapper and the Curve AMO, a strategy that adds protocol-owned liquidity to the pool. Coverage runs from the 2020 relaunch to the 2026 upgrade that took OUSD cross-chain. Because OUSD lends into Morpho and bridges through Circle's Cross-Chain Transfer Protocol (CCTP), the risk is stacked. Mapping reports to components is the kind of disclosure that matters most in that case. An audit is still not insurance, and Origin offers none.

Where it falls short: fee wording, custody and strategy

Fee disclosure at 8 is held back by what is not said, not by the 20% rate itself. The performance fee page is clear that the fee comes out of yield and that every published APY is already net of it. It does not state that minting, management and redemption are fee-free, and the rubric rewards an explicit zero. Swapping out on Curve instead of redeeming carries pool fees and slippage. The rate is a governance parameter, so it can change by xOGN vote.

Custody & control at 8 reflects a clear position with two qualifications. OUSD sits in the holder's wallet, the docs describe it as "fully liquid at all times," and the terms disclaim custody or control. Direct redemption is not instant, though: 10 minutes when the vault buffer holds USDC, up to 24 hours otherwise, and longer if the Morpho markets are fully borrowed. Most contracts are also upgradeable, subject to an xOGN vote and a 48-hour timelock.

Strategy transparency at 8 credits the net-of-fee APY and a well-documented yield engine. What keeps it below the top is discretion: within Origin's limits, Yearn can change Morpho market weights on its own, and rebalancing is done by hand. Depositors can see the framework but not a fixed allocation.

What the score does not cover

  • The soundness of USDC. OUSD is fully backed by USDC, so a USDC depeg would pass through. Our guide on how to assess a stablecoin covers that question.
  • Bad debt or full utilization in the Morpho markets, and bridge risk on CCTP.
  • Past incidents. Origin's own post records that more than $7 million was drained from the original OUSD contracts in November 2020 and that holders were compensated. The rubric does not score incident history.
  • APY levels, which are trailing averages, not promised rates.

Origin (OUSD) vs Convex Finance and Yearn Finance

CriterionOrigin (OUSD)Convex FinanceYearn Finance
Fee disclosure8107
Licence & code openness101010
Audit disclosure1089
Custody & control877
Strategy transparency888
Overall8.88.68.2

Convex Finance scores 8.6. It itemizes fees more fully but trails on audits and custody. Yearn Finance scores 8.2. It matches Origin on licence and strategy transparency and trails on fees, audits and custody. Peer marks are as currently published and may change as those entries are rechecked.

Who it suits

The score suits a holder who wants dollar exposure that earns lending yield in their own wallet, with net-of-fee APYs, open code and component-level audits. It suits less well anyone who needs instant 1:1 redemption at all times, who wants no exposure beyond USDC itself, or who would rather not rely on a curator's discretion over where the backing is lent.

How it compares

Sources

Scored from published primary sources rather than hands-on use. Every figure above comes from one of the pages below, on the date shown. Manufacturers change prices and specifications without notice — if something here no longer matches the source, tell us and we will correct it.

  1. 1.Origin docs: Performance fees — checked
  2. 2.Origin docs: Origin Dollar (OUSD) — checked
  3. 3.Origin docs: Audits — checked
  4. 4.Origin docs: Governance — checked
  5. 5.Origin: Terms of use — checked
  6. 6.Origin: OUSD compensation plan (2020 incident) — checked
  7. 7.GitHub: OriginProtocol/origin-dollar (MIT) — checked

Frequently asked questions

Why does Origin (OUSD) score 8.8?

It is the plain average of five equal marks: fee disclosure 8, licence 10, audit disclosure 10, custody 8 and strategy transparency 8. It is the highest overall of the nine rated yield aggregators.

What holds OUSD's score back?

Three things keep it off the top marks: no explicit statement that minting and redemption are fee-free, a redemption window of up to 24 hours, and a curator who can reweight lending markets within set limits.

Did anything change at the November 2026 check?

No mark changed. The fee page, audit mapping and MIT licence were re-read and all still support the existing marks, so the overall stays at 8.8.

Is the OUSD APY shown before or after fees?

After. Origin's performance fee page says the 20% fee is taken from yield before distribution and every APY it publishes, in the app and on trackers, already reflects it.

How does OUSD compare with Convex Finance and Yearn Finance?

OUSD scores 8.8, Convex 8.6 and Yearn 8.2. All three score 10 on licence. OUSD leads on audits and custody, Convex on fee itemization, and Yearn matches OUSD on strategy transparency.

Nothing here is financial advice. Editorial policy · How we score · How we're funded.