Fidelity Digital Dollar fidd

Fidelity Digital Dollar (FIDD) is Fidelity Investments' institutional-grade, U.S.-dollar stablecoin. Fidelity Digital Assets, National Association issues and manages it as an ERC-20 token on Ethereum, with a 1:1 USD peg and buy/sell path at $1 through eligible Fidelity platforms. It is distinct from a general-purpose bank deposit: on-chain usage is subject to the token's contract controls and Fidelity's terms.

Fidelity positions FIDD as a full-service stablecoin backed by its traditional-finance operational infrastructure. Fidelity Digital Assets handles purchases, redemptions, issuance and management, while Fidelity Management & Research manages reserve assets. The company says reserves are cash, U.S. Treasuries or other safe, liquid assets held at The Bank of New York Mellon, equal to or greater than FIDD value.

FIDD is currently Ethereum-only per Fidelity's developer documentation. The open-source contract and OpenZeppelin audit are published by Fidelity; contract features include privileged issuance/redemption-related controls, pausing, transfer restrictions and upgradeability. Fidelity publishes daily supply/reserve NAV self-disclosures and monthly PwC-examined reserve reports.

Dollar settlement through conventional banking can be constrained by business hours, intermediaries and operational friction, while many cryptoassets fluctuate too much for straightforward payments or collateral. FIDD is designed to provide a blockchain-transferable dollar unit for institutional and eligible retail/advisor users while retaining a familiar $1 redemption route through Fidelity.

The design also addresses institutional concerns around custody, oversight and compliance. Fidelity's full-service model, reserve reporting, regulated national trust-bank charter and contract controls aim to combine digital-asset portability with traditional financial controls. It is not permissionless in the same sense as an uncensored bearer asset: the contract includes restriction and pause capabilities, and direct guaranteed redemption requires an eligible Fidelity account.

Fidelity Digital Assets, National Association issues FIDD when its business process accepts equivalent USD and manages redemption by retiring tokens; the official GitHub README says circulating supply is controlled through issuance and redemption for equal USD amounts. The token is an ERC-20 on Ethereum mainnet with 18 decimals.

Reserve assets are managed by Fidelity Management & Research and, per Fidelity's FAQ, comprise cash, U.S. Treasuries or other safe liquid assets held at BNY Mellon, with value equal to or greater than FIDD outstanding. Fidelity self-discloses circulating supply and reserve NAV at each business-day close, while PwC examines monthly reserve reports under AICPA attestation standards.

The contract uses privileged role-based controls: minters operate within allocations, administrators can pause, and a transfer-controller/denylist can prevent restricted addresses from transferring or receiving and freeze held tokens. It is deployed behind an ERC-1967 proxy so authorized upgrades can change implementation while preserving the token address and storage. These controls support compliance but create issuer/admin and smart-contract risks absent from decentralized stablecoins.