Frax Finance ¤
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  • Frax Ecosystem Overview
  • FXS & veFXS
    • Frax Shares (FXS)
    • veFXS
    • Gauges
    • FXS Distribution
    • FXS Smart Contract & Addresses
  • GOVERNANCE
    • Frax Governance Overview
    • How It Works
    • Advanced Concepts
    • Fraxtal Snapshot Voting
  • FRAX V1 - ORIGINAL
    • Original Design
    • Staking Contracts
    • FRAX ABI & Token Addresses
    • Frax V1 Pool ABI & Addresses
    • Core Frax Multisigs
  • FRAX V2 - Algorithmic Market Operations (AMO)
    • AMO Overview
    • AMO Minter
    • Collateral Investor
    • Curve
    • Uniswap v3
    • FRAX Lending
    • Decentralization Ratio (DR)
  • FRAX V3 - 100% CR AND MORE
    • Overview
    • Fraxtal
    • AMOs
    • RWAs
    • sFRAX
    • FXBs
    • sFRAX Token Addresses
    • sFRAX & FXB Multisigs
  • Bridging
    • Fraxferry
    • LayerZero x Stargate
    • Fraxtal Bridge
  • Frax Price Index
    • Overview (CPI Peg & Mechanics)
    • Frax Price Index Share (FPIS)
    • FPIS Distribution
    • CPI Tracker Oracle
    • FPI Controller Pool
    • veFPIS
    • FPIS Conversion / FPIS Locker
    • FPI and FPIS Token Addresses
    • FPI Multisigs
  • Fraxswap
    • Overview
    • Technical Specifications
    • Fraxswap Contract Addresses
  • Fraxlend
    • Fraxlend Overview
    • Key Concepts
    • Lending
    • Borrowing
    • Advanced Concepts
      • Position Health & Liquidations
      • Interest Rates
      • Vault Account
    • ABI & Code
    • Fraxlend Multisigs
  • Frax Ether
    • Overview
    • frxETH and sfrxETH
    • Technical Specifications
    • Redemption
    • frxETH V2
    • frxETH V2 Technical Details
    • frxETH Code & V2 Addresses
    • frxETH and sfrxETH Token Addresses
    • frxETH Multisigs
  • BAMM
    • Overview
  • Frax Oracle
    • Frax Oracle Overview
    • How It Works
    • Advanced Concepts
    • Fraxtal Merkle Proof Oracles
  • Guides & FAQ
    • FAQ
    • Staking
    • Uniswap Migration / Uniswap V3
    • Fraxswap / FPI
  • Miscellany
    • All Contract Addresses
    • Bug Bounty
    • Miscellaneous & Bot Addresses
    • API
  • Other
    • Audits
    • Media Kit / Logos
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  • Summary
  • Liquid Staking
  • Income Distribution
  • Flowchart
  • frxETH flywheel interview with Jack Corddry

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  1. Frax Ether

Overview

Frax's liquid ETH staking derivative

PreviousFraxlend MultisigsNextfrxETH and sfrxETH

Last updated 4 months ago

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Summary

Frax Ether is a liquid ETH staking derivative and stablecoin system designed to uniquely leverage the Frax Finance ecosystem to maximize staking yield and smoothen the Ethereum staking process for a simplified, secure, and DeFi-native way to earn interest on ETH. In addition, frxETH is used as the on the Fraxtal L2 chain. Lastly, 10% of the income is retained, with 8% as a protocol fee for the benefit of the Frax Ecosystem and FXS holders, and 2% for an insurance fund. The balance sheet & peg of frxETH to ETH is independent of FRAX's $1 balance sheet & peg.

The Frax Ether system comprises three primary components, Frax Ether (frxETH), Staked Frax Ether (sfrxETH), and the Frax ETH Minter:

  1. frxETH acts as a stablecoin loosely pegged to ETH, leveraging Frax's winning playbook on stablecoins and onboarding ETH into the Frax ecosystem. The frxETH peg is defined as 1% of the exchange rate on each side 1.01 to .9900.

  2. sfrxETH is the version of frxETH which accrues staking yield. All profit generated from Frax Ether validators is distributed to sfrxETH holders. By exchanging frxETH for sfrxETH, one becomes eligible for staking yield, which is redeemed upon converting sfrxETH back to frxETH.

  3. Frax ETH Minter (frxETHMinter) allows the exchange of ETH for frxETH, bringing ETH into the Frax ecosystem, spinning up new validator nodes when able, and minting new frxETH equal to the amount of ETH sent.

Liquid Staking

Solo ETH staking requires the technical knowledge and initial setup associated with running a validator node, and also that deposits be made 32 ETH at a time. By opting to use a liquid ETH staking derivative instead of staking ETH in another form, staking yield can be accrued much more simply, abstracting the need to run validators, allowing yield to be earned on any amount of ETH, allowing withdrawals at any time and of any size, and allowing far greater composability throughout DeFi.

Income Distribution

Per , the ETH staking income is distributed as follows:

  1. sfrxETH Rewards [90%]: Rewarded to sfrxETH vault stakers in the form of frxETH. This generates sfrxETH APY.

  2. Protocol fee [8%]: Sent to Frax ecosystem contracts (like AMOs) for the eventual benefit of FXS holders and FRAX peg backing.

  3. Insurance fund [2%]: Covers potential slashing events/unforeseen penalties. Backs frxETH deposits to effectively keep frxETH overcollateralized at over 100% CR to cover any possible issues/losses.

Flowchart

frxETH flywheel interview with Jack Corddry

gas token
FIP-122