Fidelity

On-chain AUM$31.73m

Platform totals

Live assets1

Chains1

Est. annual revenue$44,419.8

DeFi TVL$0

DeFi TVL / AUM0%

Confirmed attestations1 / 1

Primary accessPermissioned (1)

Totals for filtered assets

$31.73m

Assets Rankings

1d7d1m

Name		Marketcap			DeFi			Flows
Name
Fidelity1 asset		$31.73m	$31.73m	0%	$0	0%

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).

MMFBond & MMF FundsPermissioned

Website Docs

Profile

Primary chain: Ethereum
Parent platform: Fidelity
Issuer: Fidelity Hereford Street Trust (registered investment company); Fidelity Investments (sponsor)

Economics & revenue

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

Revenue confidencePublic Filings

Fees last verified2026-05-10

Fee waiver ends2027-04-30

Attestations & milestones

Attestation frequency: Daily NAV; annual audited financials filed with SEC
Last attestation: Continuous (NAV)

Revenue methodology & documents

Revenue model: Asset Manager Fee

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.

Prospectus Issuer document

Issuer registry, regulation & leadership

Issuer 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.

Issuer source