US30Y

BondsLive

Tokenized US Treasury 30-Year Bond

Tokenized US Treasury 30-Year Bond, fixed-income exposure with coupons reinvested to NAV.

See US30Y on /markets →Underlying ticker: US30Y
Available onGM Markets

Key facts

On-chain symbol
US30Y
Underlying
US30Y
Asset class
Bonds
Custody
Held at Flo Finance
Chains
Base, Arbitrum, Ethereum
Distribution treatment
Coupon reinvested to NAV
Attestation cadence
Daily
Issuer
Flo Finance
Backing
1:1 backed by the real underlying

How US30Y resolves to US30Y

Each US30Y on-chain represents a 1:1 claim on the underlying US Treasury 30-Year Bond held at an institutional custodian. The issuer and backing model are the same for every Flo token; only the underlying differs.

  1. 01

    Issuance

    Flo Finance issues US30Y as a tokenized US Treasury 30-Year Bond, 1:1 backed by the real underlying.

  2. 02

    Custody

    The underlying US Treasury 30-Year Bond is held at Flo Finance, an institutional custodian.

  3. 03

    Settlement

    US30Y settles on-chain on Base, Arbitrum, Ethereum. Cross-chain transfers route through Chainlink CCIP.

  4. 04

    Attestation

    Reserves are attested daily by an independent auditor and published on the Flo transparency surface.

Mint US30Y with one SDK call

Every Flo-issued token shares the same six SDK methods. Mint, redeem, supply, withdraw, borrow, repay.

POST /v1/mint

{
  "asset": "US30Y",
  "notional_usdc": "1000.00",
  "slippage_bps": 50,
  "settlement": {
    "currency": "USDC",
    "chain": "base"
  }
}

Where US30Y lives today

Flo distributes through partners. The same US30Y on-chain is the asset every partner integrates against; partner UIs may relabel it for their own brand.

Available on US30Y

1 partner

See the asset live, in a real partner app, settled on-chain through the Flo SDK.

Audits

Four independent firms, $250K bug bounty

Sherlock, Halborn, Cantina, and Cyfrin have audited the smart contracts that issue and settle US30Y. The same contracts power every Flo-issued token; one audit covers the catalogue.

Read the audit reports →

Backing

1:1 backed by the real underlying

US30Y is issued by Flo Finance and 1:1 backed by real US Treasury 30-Year Bond held at institutional custodians. Reserves are attested daily and published on the Flo transparency surface.

Open the transparency page →

Risks

US30Y carries the market risk of the underlying US Treasury 30-Year Bond, plus the structural risks common to every tokenized asset: custody concentration, smart-contract risk, and oracle dependency. Read the full risk disclosures on the Flo transparency surface before integrating or holding.