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Fidelity
Active AUM
$25.61mKey Metrics
Onchain AUM$25.61m
Change (24h)0%
Active / Onchain100%
DeFi Active TVL$0
Change (24h)N/A
Utilization0%
Largest ProtocolN/A
Net Flows 30dN/A
Net Flows 7dN/A
Live Assets1
Issuers1
Est. Annual Revenue$35,853
ConfidencePublic Filings
Asset rankings
| Name | Chains | Asset Type | AUM | DeFi | Flows | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| MMF | $25.61m | $25.61m | 0% | $0 | 0% | $1 | ||||
About Fidelity
Fidelity Treasury Digital Fund OnChain Class (FYOXX) is the first SEC-registered MMF from Fidelity Investments to record ownership on a public blockchain. Launched 2025 by Fidelity Investments, FYOXX is a share class of the existing Fidelity Treasury Digital Fund and invests in US Treasury securities and repurchase agreements collateralized by Treasuries. Share ownership is recorded on Ethereum via a transfer-agent-controlled smart contract; the on-chain class is institutional-only with a $1M minimum and offered to qualified institutional buyers. Tokens are non-transferable and non-self-custodied; redemptions are in USD via the transfer agent. Fidelity is a top-5 US asset manager and one of the largest US 401(k) administrators; the FYOXX launch follows competitor MMFs from BlackRock (BUIDL), Franklin Templeton (BENJI), and WisdomTree (WTGXX).
Entity
Legal entityFidelity Hereford Street Trust (registered investment company); Fidelity Investments (sponsor)
Primary chainEthereum
Registry
Fidelity Treasury Digital Fund (FYOXX, OnChain Class) is a series of Fidelity Hereford Street Trust, a Massachusetts business trust registered with the SEC as an open-end investment company under the Investment Company Act of 1940 (CIK 0000877212). Sponsor: Fidelity Investments (FMR LLC, parent), one of the largest US asset managers ($4T+ AUM). The OnChain Class records share ownership on Ethereum via a transfer-agent-controlled smart contract; the underlying assets (US Treasury securities and cash) sit in the master fund. Fund administrator: Fidelity Service Company. Custodian: State Street. Auditor: PricewaterhouseCoopers LLP.
Compliance
Of 1 assets
Attested1 of 1
KYC to mint or redeem1 of 1
Allowlisted to hold1 of 1
Transferable1 of 1
Self custody1 of 1
Redeemable1 of 1
Attestation frequencyDaily NAV; annual audited financials filed with SEC
Last attestationContinuous (NAV)
Fees & revenue
Revenue modelAsset Manager Fee
ConfidencePublic Filings
Est. Annual Revenue$35,853
Holder Total Fee14 bps
Asset Manager Take14 bps
Tokenization Platform Take0 bps
Performance Fee0%
Mint Fee0 bps
Redemption Fee0 bps
Underlying Fund Expense14 bps
Float IncomeNo
Fees Last Verified2026-05-10
Fee Waiver Ends2027-04-30
Per SEC-filed FYOXX prospectus: gross expense ratio approximately 30 bps; net expense ratio approximately 14 bps after contractual fee waivers. Numbers should be re-verified against the most recent FYOXX prospectus / SAI filing. Tokenization handled in-house by Fidelity transfer agent — no separate vendor fee.