Crypto Gloss

Lybra Finance

Lybra Finance is an LSDfi protocol that issues eUSD — a yield-bearing USD stablecoin backed by stETH — where the staking yield from stETH collateral is automatically distributed to eUSD holders as a rebase, effectively giving stablecoin holders access to Ethereum staking yield without holding stETH directly.

Overview

Launched in 2023 after the Ethereum Merge made staking yields accessible, Lybra Finance built one of the first LSDfi protocols to achieve significant scale. Its core innovation was wrapping stETH-backed CDP borrowing with a yield distribution mechanism: instead of only borrowers capturing the stETH yield, Lybra routes that yield to eUSD holders as a daily rebase — making eUSD naturally yield-bearing without any additional staking step. This created a strong “interest-free savings” narrative: hold eUSD, earn staking yield passively.

eUSD: Yield-Bearing Stablecoin

eUSD is Lybra’s primary stablecoin:

Mechanism:

  1. Users deposit stETH as collateral (minimum 160% collateral ratio)
  2. Users borrow eUSD (a $1-pegged synthetic stablecoin)
  3. The deposited stETH earns Lido staking yield (~3–5% annually depending on network conditions)
  4. All stETH yield is distributed to eUSD holders as a daily positive rebase
  5. eUSD balances grow automatically in users’ wallets — no staking, no claiming

Result: Holding eUSD earns staking-level yield automatically. This flips the typical CDP model (borrowers capture collateral yield) into a model where the stablecoin holders capture yield from the system’s aggregate collateral.

peUSD: Omnichain Stablecoin

Because eUSD rebases daily, it is incompatible with many DeFi protocols (LP AMMs, lending markets) that don’t support rebase token mechanics:

  • peUSD (Pegged eUSD) is a non-rebasing wrapped version of eUSD
  • Users wrap eUSD → peUSD at 1:1
  • peUSD does not rebase — it maintains a stable balance
  • peUSD is compatible with standard DeFi (Uniswap, Aave, Curve)
  • peUSD can be deployed across multiple chains (Arbitrum, etc.) via LayerZero messaging
  • Cross-chain yield is reconciled when peUSD is unwrapped back to eUSD

v2: Expanded Collateral

Lybra v2 expanded beyond stETH:

  • wstETH — wrapped staked ETH (preferred over rebasing stETH for stability)
  • rETH — Rocket Pool ETH
  • cbETH — Coinbase staked ETH
  • stETH (direct) — retained from v1 with full rebase functionality
  • Broader collateral reduces concentration risk and opens access to different LSD communities

LBR Token

LBR is Lybra’s governance and value-capture token:

  • esLBR — escrowed LBR; primary incentive token distributed to stakers and LP providers; vests to LBR over time
  • Governance — LBR/esLBR holders vote on collateral ratios, stablecoin parameters, and protocol fee allocation
  • Revenue sharing — protocol fee revenue shared with esLBR stakers
  • Bribe market integration — esLBR voters participate in directing veDEX emissions (e.g., on Curve pools for eUSD/peUSD)

Sources

  1. Lybra Finance Documentation and v2 Overview — Lybra Finance Team, 2023. Describes eUSD rebase mechanism (stETH yield distribution to holders), peUSD non-rebase wrapper design, LBR/esLBR dual token model, and expanded collateral types in v2 including rETH and cbETH.
  1. “LSDfi: The Yield Layer on Top of Staking” — Delphi Digital Research, 2023. Surveys protocols building financial services on top of liquid staking derivatives including Lybra (eUSD yield-bearing stablecoin), Prisma (mkUSD CDP), Raft (R stablecoin), analyzing the LSDfi opportunity size relative to total ETH staking yield generated.
  1. “Yield-Bearing Stablecoins: eUSD vs. sDAI vs. sUSDe” — Messari Research, 2023. Compares yield-bearing stablecoin approaches: Lybra’s rebase model (eUSD yields via stETH), MakerDAO’s savings rate model (sDAI earns DSR), and Ethena’s delta-hedged approach (sUSDe earns funding + staking), evaluating risk-adjusted yield and composability.
  1. “Rebase Token Mechanics in DeFi” — Bankless Research, 2022. Explains how positive-rebase tokens (Ampleforth, stETH, eUSD) work mechanically — balance adjustments vs. price changes — and why rebase mechanics cause incompatibility with certain DeFi protocols, explaining Lybra’s decision to create peUSD as a wrapper.
  1. Lybra Finance Governance and Multi-Chain Expansion — Lybra DAO, 2023. Governance records covering v2 collateral additions, peUSD cross-chain deployment via LayerZero, esLBR reward parameter adjustments, and strategic partnerships with LSD protocols for collateral co-promotion.

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