# Oh! Yield Index

Users interact with Oh! Finance and earn yield by depositing underlying tokens to a Bank. Each Bank has a set of Strategies that interact with individual DeFi protocols, such as Aave, Compound, or Curve. This set of Strategies forms a **Yield Index** which returns the average APY earned across all associated protocols.

## Contracts

* [Oh! Bank](/protocol/oh-yield-index/oh-bank.md) - Tokenized Yield Index
* [Oh! Strategy](/protocol/oh-yield-index/oh-strategy.md) - DeFi Protocol Interaction
* [Oh! Liquidator](/protocol/oh-yield-index/oh-liquidator.md) - Token Swap Management
* [Oh! Manager](/protocol/oh-yield-index/oh-manager.md) - Yield & Revenue Management


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