Stellar lending glossary

One line per term. Follow links for full guides. Technical scales and contract details are under Developers in the sidebar.

Accounts and balances

Term	Definition
Lending account	One position container per wallet. It can hold multiple supplied and borrowed assets at once (accounts and risk).
Scaled balance	Internal accounting that grows with interest indexes. Your live balance updates automatically (interest and revenue).
Supply index	Pool-level multiplier that turns scaled supply into the token amount you see (interest and revenue).
Borrow index	Pool-level multiplier that turns scaled debt into what you owe (interest and revenue).
Market	A listed asset on the shared pool with its own risk settings and price feed (markets).
Utilization	Share of supplied liquidity that is currently borrowed. Higher utilization generally means higher borrow rates (interest and revenue).
Reserve factor	Portion of borrow interest that goes to the protocol instead of suppliers (interest and revenue).

Term	Definition
Liquidity pool	One shared contract that holds all listed assets and tracks pool-wide totals (markets).
Controller	The main contract that handles user actions, risk checks, and events (system architecture).
Governance	Admin contract that owns the controller and schedules protocol changes on a timelock (governance).
Timelock	Mandatory waiting period between scheduling and executing governance changes. Mainnet delay is roughly 48 hours (governance).
Accumulator	Address that receives protocol revenue from borrow fees (interest and revenue).

Term	Definition
Health factor	Collateral value (weighted for liquidation) divided by total debt. Below 1 means liquidatable (health factor).
LTV (loan-to-value)	Maximum borrowing power for a collateral asset, set when you supply (risk parameters).
Liquidation threshold	Collateral weight used in the health factor calculation. Always stricter than LTV (risk parameters).
Liquidation bonus	Extra collateral paid to liquidators above the debt they repay (liquidations).
Bad debt	Debt left over after liquidation that cannot be fully covered by collateral. It is shared across suppliers in the pool (liquidations).

Term	Definition
Oracle policy	Rules for how strictly prices are checked on each type of action (oracles).
Reentry guard	Safety lock that blocks certain actions during flash loans, strategy swaps, and Blend migration (security model).

Term	Definition
Flash loan	Same-transaction borrow that must be repaid with a fee before the transaction ends (flash loans).
Blend migration	One-step move from an approved Blend pool to an equivalent XOXNO position (Blend migration).
Blend pool	A Blend V2 pool address approved by governance for migration (Blend migration).
DeFindex	Third-party vault protocol. A reference adapter maps vault deposits to XOXNO supply positions (DeFindex strategy).

Term	Definition
RAY	High-precision internal scale used for interest indexes and scaled balances (types).
WAD	Scale used for USD values and health factor (types).
BPS	Basis points. 10,000 BPS equals 100%, used for LTV, fees, and bonuses (risk parameters).

Common questions about supply, borrow, and risk.

What the protocol does and how it is structured.

How to read your number and stay safe.

How the two Stellar lending protocols differ.