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Fidelity
Active AUM
$25.84mKey Metrics
Onchain AUM$25.84m
Change (24h)0%
Active / Onchain100%
DeFi Active TVL$0
Change (24h)—
Utilization0%
Largest Protocol—
Net Flows 30d—
Net Flows 7d—
Live Assets1
Issuers1
Est. Annual Revenue$36,173
ConfidencePublic Filings
Asset rankings
| Name | Chains | Asset Type | AUM | DeFi | Flows | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| MMF | $25.84m | $25.84m | +0.50% | $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)
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
Fees & revenue
Revenue modelAsset Manager Fee
ConfidencePublic Filings
Est. Annual Revenue$36,173
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.