🏋️Collateral
Accepted assets per network, and how collateral secures every loan
Borrowing on the Fixed-Rate Lending Protocol requires over-collateralization: you deposit assets worth more than you borrow. This replaces credit checks — anyone can borrow, and lenders are protected because under-collateralized positions are liquidated.
Supported assets by network
Ethereum
WBTC, ETH, USDC, axlFIL, JPYC
WBTC, ETH, USDC, JPYC, uMINT
Arbitrum
WBTC, ETH, USDC
WBTC, ETH, USDC
Filecoin (FVM)
FIL, USDFC
FIL, iFIL, wpFIL, USDFC
Asset availability last confirmed with the team on 2026-07-16 (JPYC lending markets: Ethereum only; wpFIL collateral: Filecoin only; uMINT/RWA collateral: Ethereum only). The live list can be read per network from CurrencyController.getCurrencies().
Avalanche support is deprecated. Polygon zkEVM has been sunset and is no longer operational. Legacy deployment addresses are retained for historical reference only: Contracts & Security.
Current haircuts, thresholds, and the authoritative asset list: Protocol Parameters.
Asset notes
USDFC — Secured Finance's own FIL-backed stablecoin, minted via CDP on FVM. Learn more.
iFIL / wpFIL (liquid staking tokens) — represent staked FIL that keeps earning staking rewards while serving as collateral. For example, stake FIL on GLIF to receive iFIL, then deposit the iFIL as collateral — a dual-yield position. Both are accepted on Filecoin.
axlFIL — Axelar-bridged FIL on Ethereum.
JPYC — JPY-pegged stablecoin; fixed-rate JPY lending markets are live on Ethereum (as of July 2026).
RWA collateral — tokenized money-market fund collateral (uMINT, via DigiFT), accepted as collateral on Ethereum (as of July 2026).
How collateral is monitored
The protocol values collateral continuously using Chainlink price feeds, plus Mark-to-Market pricing for ZC bond positions.
Your Loan-to-Value (LTV) ratio — debt value over collateral value — is visible in the Portfolio risk panel.
If LTV reaches the liquidation threshold, the position can be liquidated.
Multi-collateral is supported: you can back a single borrowing book with several asset types, diversifying against any one asset's volatility.
Common questions
What happens if my collateral value drops?
Your LTV rises. If it reaches the liquidation threshold, 50% of your debt can be liquidated — or 100% if LTV deteriorates past the full-liquidation threshold — with a fee taken from your collateral. Prevent this by adding collateral or reducing debt early (unwind the position, or place an opposite order for part of the amount) — see Liquidation.
Can I withdraw collateral while I have open borrows?
Yes, as long as the remaining collateral keeps your LTV safely below the threshold. The app blocks withdrawals that would put your position at immediate risk.
Can ZC bonds themselves be used as collateral?
Yes — lending positions can serve as collateral for borrowing in the same currency, enabling yield-spread strategies. See ZC Bonds as Collateral.
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