Crypto glossary
Isolated lending markets
Isolated lending markets separate each collateral and loan pair into its own pool, so a failure in one market cannot drain lenders in the others.
Classic money markets such as early Aave and Compound use shared pools: every deposit backs every loan, so listing one risky token exposes all lenders. Isolated lending flips that model. Each market pairs one collateral asset with one borrowable asset and has its own parameters, oracle and depositors. Morpho Blue, Euler v2, Fraxlend and Silo are examples, and many of them let anyone create a new market without governance approval.
Isolation makes it possible to list long-tail tokens, yield-bearing assets or experimental collateral without endangering the whole protocol. It also lets lenders choose exactly which risks they accept, often through vaults run by curators that spread deposits across several markets.
The trade-off is fragmentation: liquidity is split into many small pools, borrow rates can differ widely and capital efficiency drops. Isolation limits contagion but does not remove risk. A lender in a poorly configured market can still lose money through bad debt, and permissionless creation means some markets have weak oracles or unrealistic parameters.
Example
On an isolated lending protocol, a lender supplies USDC only to a wstETH/USDC market; when a small token's market elsewhere on the same protocol suffers bad debt, her deposit is unaffected.