US20Y

BondsLive

Tokenized US Treasury 20-Year Bond

Tokenized US Treasury 20-Year Bond, fixed-income exposure with coupons reinvested to NAV.

See US20Y on /markets →Underlying ticker: US20Y

Key facts

Wrapped symbol
US20Y
Underlying
US20Y
Asset class
Bonds
Custodian
Interactive Brokers
Chains
Base, Arbitrum, Ethereum
Distribution treatment
Coupon reinvested to NAV
Attestation cadence
Daily
Issuer
Flo Global Markets Ltd. (BVI)
Asset SPC
Flo Capital SPC (Cayman)
Prospectus
FMA-approved Liechtenstein base prospectus

How US20Y resolves to US20Y

Each US20Y on-chain represents a unit claim on the underlying US Treasury 20-Year Bond held in a segregated brokerage account. The issuer, custodian, and prospectus are the same for every Flo token; only the underlying differs.

  1. 01

    Issuance

    Flo Global Markets Ltd. (BVI) issues US20Y under the FMA-approved Liechtenstein base prospectus, EEA-passported across 30 states.

  2. 02

    Custody

    The underlying US Treasury 20-Year Bond is held by Flo Capital SPC (Cayman) in a segregated brokerage account at Interactive Brokers, an SEC-registered broker-dealer.

  3. 03

    Settlement

    US20Y 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 US20Y with one SDK call

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

POST /v1/mint

{
  "asset": "US20Y",
  "notional_usdc": "1000.00",
  "slippage_bps": 50,
  "settlement": {
    "currency": "USDC",
    "chain": "base"
  }
}

Where US20Y lives today

Flo distributes through partners. The same US20Y on-chain is the asset every partner integrates against; partner UIs may relabel it for their own brand.

Partner integrations in build

No live partner is distributing US20Y yet. Twelve integrations are in build across exchanges, wallets, fintechs, neobanks, and asset managers. Partners are listed here only after they ship.

Audits

Four independent firms, $250K bug bounty

Sherlock, Halborn, Cantina, and Cyfrin have audited the smart contracts that issue and settle US20Y. The same contracts power every Flo-issued token; one audit covers the catalogue.

Read the audit reports →

Prospectus

FMA-approved Liechtenstein base prospectus

US20Y is issued under a base prospectus approved by the Liechtenstein Financial Market Authority and passportable across all 30 EEA states.

Open the prospectus →

Risks

US20Y carries the market risk of the underlying US Treasury 20-Year Bond, plus the structural risks common to every issuer-wrapped token: custody concentration, smart-contract risk, oracle dependency, and prospectus jurisdiction. Read the full risk section in the base prospectus before integrating or holding.