Neutrl USD

nusd
CoinYQ Dossier

NUSD: the market-neutral dollar that met an illiquid position

Neutrl sold access to a trading book in the shape of a dollar. NUSD stayed liquid while sNUSD collected OTC discounts, funding and basis income. Then one strategy position stopped being liquid enough: the issuer paused the doors and the protocol’s promise changed from a 48-hour queue to an unconfirmed recovery process.

A trading book learned to speak in dollars

NUSD was neither a bank dollar nor a collateralized loan minted by each borrower. It was the unit issued against a centrally managed portfolio.

The portfolio mixed liquid stable assets with discounted OTC tokens and spot-perpetual hedges. Its pitch was not that risk vanished, but that several returns could be combined while directional exposure was reduced.

That made “one NUSD” a simple frontend for a balance sheet spread across contracts, custodians, counterparties and maturities.

The entrance was open; the exit checked passports

Minting documentation let anyone send USDC, USDT or USDe through Router. Oracle pricing, minimum output and per-block caps decided how much NUSD appeared.

Direct redemption was different. Only KYC/KYB-approved parties could request backing assets; everyone else depended on a qualified intermediary or secondary liquidity.

sNUSD turned timing into yield

NUSD itself earned nothing. Depositing it into sNUSD created a share whose exchange rate rose when the distributor delivered strategy income.

The same design made time visible: unstaking invoked a 30-day cooldown without rewards. Neutrl could also smooth irregular OTC profits over days or weeks at its discretion.

The reserve contract had a door to custody

AssetReserve received mint collateral, served redemptions and allowed authorized custodians to take assets for offchain execution. At review, NUSD, sNUSD and the reserve shared one owner address.

That owner address is evidence of a control point, not proof of who signed or whether a claimed MPC policy was always enforced. Solvency also depended on custody records and position valuation outside Ethereum.

A 48-hour target became an indefinite pause

On 13 August 2026 Neutrl stopped minting, redemptions and other functions after circumstances affected reserves. A week later it remained paused.

On 28 August the issuer narrowed the cause to a strategy position affecting liquidity, reported about USD 27 million readily liquid and could not confirm the recovery value or timing of the rest. The earlier 48-hour queue target no longer described the actual exit.

The holder now waits on a process, not a peg formula

An early-redemption contract was targeted for early September, contingent on deployment, audit and legal review. No completed mechanism was verified by 5 September.

The disclosure already warned that the sole issuer might fail to maintain full redemption reserves. Holders have tokens and whatever process the issuer makes available; they do not thereby own the company, each OTC claim or a guaranteed dollar payment.

How the project changed

  1. 2025-06-25
    Public documentation begins

    The GitBook repository starts describing NUSD, OTC yield and synthetic-dollar mechanics.

  2. 2025-07
    Core contracts reviewed

    Cantina assesses minting, redemption, reserves and staking code.

  3. 2026-03
    Frontend hijack triggers a pause

    Neutrl migrates domains after malicious redirects and uses emergency controls.

  4. 2026-08-13
    Reserve circumstances close the doors

    Minting, redemption and other protocol functions are paused.

  5. 2026-08-20
    The pause remains

    The issuer says reserve assessment and an orderly process are still under development.

  6. 2026-08-28
    Liquidity gap is quantified only in part

    About USD 27M is described as liquid; recovery from other positions remains uncertain.

Evidence and primary sources

Last evidence review: 2026-09-05

What is Neutrl USD?

NUSD is an Ethereum synthetic dollar solely issued by CAVERNA AUCTUS INC. Its reserves were allocated among stable assets, hedged OTC positions and market-neutral trades; sNUSD was the separate staking share.

What problem does Neutrl USD solve?

OTC discounts and derivatives carry were difficult for individual users to access and manage. Neutrl packaged them behind a transferable dollar unit, but the packaging joined liquid holder claims to positions whose maturity and exit could be slower.

How does Neutrl USD work?

The Router accepted supported dollars, moved them to AssetReserve and minted NUSD after oracle and rate checks. Approved users could redeem; sNUSD stakers received strategy income. Admins and custodians moved collateral offchain, and emergency controls could pause the path.

Key facts

  • NUSD contract: 0xE556ABa6fe6036275Ec1f87eda296BE72C811BCE.
  • sNUSD contract: 0x08EFCC2F3e61185D0EA7F8830B3FEc9Bfa2EE313.
  • AssetReserve: 0x16C2C5Ab7c5A94a733Be90160c01663b7bBA0e02.
  • All three returned owner 0x51de41ec06e779715d7fb71ef83a736cfc903217 at the review snapshot.
  • NUSD and sNUSD use 18 decimals.
  • NUSD supply at block 25,906,709: 53,390,061.78502091.
  • sNUSD shares at that block: 31,895,847.52403095.
  • CAVERNA AUCTUS INC. is named as sole issuer and Panama operator.
  • The design allowed users to deposit USDC, USDT or USDe to mint NUSD without prior permission.
  • Direct redemption requires KYC/KYB allowlisting.
  • Queued redemption had a 48-hour target, not a guarantee.
  • sNUSD exit uses a documented 30-day cooldown.
  • Minting and redemption have been paused since 2026-08-13.
  • The 2026-08-28 update reported about USD 27M liquid and unconfirmed recovery from other positions.
  • No verified equity, deposit insurance, fixed yield or unconditional par redemption right attaches to ordinary holding.

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Frequently asked questions

Which NUSD is this?

Neutrl USD on Ethereum at 0xE556ABa6fe6036275Ec1f87eda296BE72C811BCE, excluding Nectra, Nest and other namesakes.

Can NUSD be minted or redeemed now?

The issuer paused minting, redemptions and other functions on 13 August 2026; no verified reopening was found by 5 September.

Was redemption open to everyone before the pause?

No. Direct redemption required KYC/KYB approval, while minting was documented as permissionless.

Where did the yield go?

NUSD earned none; strategy income increased the exchange value of sNUSD after staking.

What happened to the reserves?

Neutrl said one strategy position impaired liquidity, about USD 27M was liquid, and recovery value and timing for other positions were unknown.

What legal right does a holder have?

The issuer disclosure recognizes redemption obligations but warns it may fail to maintain reserves; ordinary holding does not establish equity, insurance or unconditional par payment.

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