How Does EtherFi Borrowing Market Work?
EtherFi Borrowing Market is a lending platform built by ether.fi, the largest liquid restaking protocol. It lets you deposit crypto (especially ether.fi's own weETH and eETH tokens) as collateral and borrow USDC against it. A unique feature is the ether.fi Cash Visa card, which lets you spend your borrowed USDC directly. The protocol runs on Scroll, an Ethereum Layer 2, and uses a novel two-stage liquidation process that sells only 50% of your collateral first before selling the rest. It supports 15+ collateral types with different risk parameters.
TVL
$166M
Sector
Lending
Risk Grade
C+
Value Grade
C
Core Mechanisms
Lending/Collateralized-Borrowing
Multi-collateral borrowing market with asset-specific LTV ratios and two-stage liquidation
Users deposit supported collateral (15+ assets including weETH, wETH, USDC, ETHFI) and borrow against it. Each asset has a specific LTV (e.g., weETH 55%, USDC 90%, ETHFI 20%). Standard overcollateralized lending.
Lending/Liquidation-Engine
NovelTwo-stage liquidation: 50% collateral liquidated first, then remainder if still unhealthy; asset-specific liquidation bonuses
Unique two-stage liquidation where 50% of collateral is sold first, and only if the position remains unhealthy is the rest liquidated. Each asset has a different liquidation bonus (1% for USDC to 5% for riskier assets like SCR).
Lending/Interest-Rate-Model
Borrowing with accruing interest and no minimum repayment schedule
Interest accrues on outstanding borrows with flexible repayment. Exact interest rate model parameters not publicly documented in detail.
Infrastructure/L2-Deployment
NovelDeployed on Scroll (ZK-rollup L2) with Gnosis Safe-based non-custodial vaults
Users' assets sit in Gnosis Safe smart contract vaults on Scroll. Protocol cannot move funds without user authorization. L2 deployment reduces gas costs but introduces sequencer dependency.
Lending/Collateral-Management
Support for native ether.fi assets (weETH, eETH, LiquidETH, LiquidUSD) alongside standard tokens
Native integration with ether.fi's liquid staking/restaking tokens creates a vertically integrated lending stack. Collateral health depends on parent protocol's exchange rate oracles.
Payment/Card-Integration
Visa card integration for spending borrowed USDC directly via the ether.fi Cash card
Borrowed funds can be spent via a Visa card in 'Borrow Mode'. Novel user experience but the lending mechanics are standard. Adds real-world spending as a borrow demand driver.
How the Pieces Interact
weETH used as collateral carries embedded staking + restaking risk. An EigenLayer AVS slashing event reduces the ETH backing of weETH, instantly lowering collateral value across all borrowing positions before liquidation bots can react. Unlike ETH, weETH collateral health depends on two external systems (Ethereum staking + EigenLayer).
Liquidations require timely transaction inclusion on Scroll. If the centralized Scroll sequencer experiences downtime or censorship, liquidation bots cannot act, allowing positions to become deeply undercollateralized before resuming. Scroll's ZK-rollup finality adds latency compared to L1.
The borrowing market is heavily weighted toward ether.fi native assets (weETH, eETH, LiquidETH, ETHFI). A negative ether.fi-specific event (exploit, de-peg, governance crisis) would simultaneously devalue most collateral in the lending pool, creating systemic bad debt.
The 50%-first liquidation approach is gentler to borrowers but creates a window where the remaining 50% of collateral can drop in value between stages. For volatile assets like ETHFI (20% LTV, 50% liquidation threshold), the gap between stages can generate bad debt.
Users spending via the Cash card may not monitor their collateral health in real-time. Card spending increases borrow balance automatically, and a market downturn during active card usage could push positions past liquidation thresholds without the user noticing until their card is declined.
What Could Go Wrong
- weETH collateral carries embedded restaking + staking risk — a slashing event reduces collateral value before liquidation bots can react
- Operates on Scroll L2, inheriting both Ethereum finality delays and Scroll-specific sequencer centralization risk
- Concentrated collateral types (weETH, eETH, ETHFI) create correlated liquidation risk during ether.fi-specific stress events
weETH De-peg Triggers Correlated Liquidation Cascade
ModerateTrigger: An EigenLayer AVS slashing event reduces weETH backing by >3%, causing the exchange rate to drop and triggering liquidations across all weETH-collateralized positions simultaneously
- 1.EigenLayer AVS slashing reduces the ETH backing of weETH by 3-5% — weETH/ETH exchange rate drops; all weETH collateral positions in the borrowing market become closer to liquidation thresholds
- 2.First-stage liquidation (50%) triggers on the most leveraged weETH positions — 50% of weETH collateral is sold; market absorbs selling pressure but weETH secondary market price drops further
- 3.eETH and LiquidETH collateral also devalues since they share the same backing pool — Correlated liquidations cascade across all ether.fi-native collateral types; 60%+ of the lending pool's collateral is impaired
- 4.Remaining 50% of initially liquidated positions triggers second-stage liquidation — Additional selling pressure drives weETH discount wider; liquidation proceeds may not cover outstanding borrows
- 5.Bad debt accumulates in the lending pool as collateral values fall faster than liquidation can clear — Lenders face losses; depositors rush to withdraw USDC and other non-impaired assets
Risk Profile at a Glance
Overall: C+ (36/100)
Lower score = safer